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210222012112 = 2477948748787
BaseRepresentation
bin1100001111001000110…
…1010101011011010000
3202002121201210200222121
43003302031111123100
511421013313341422
6240324043144024
721121332422410
oct3036215253320
9662551720877
10210222012112
11811779331a2
12348aab15014
1316a92cccb58
14a263916640
155705a888c7
hex30f23556d0

210222012112 has 80 divisors (see below), whose sum is σ = 472361512960. Its totient is φ = 88770225024.

The previous prime is 210222012101. The next prime is 210222012149. The reversal of 210222012112 is 211210222012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4284583 + ... + 4333369.

It is an arithmetic number, because the mean of its divisors is an integer number (5904518912).

Almost surely, 2210222012112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210222012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236180756480).

210222012112 is an abundant number, since it is smaller than the sum of its proper divisors (262139500848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210222012112 is a wasteful number, since it uses less digits than its factorization.

210222012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49368 (or 49362 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210222012112 its reverse (211210222012), we get a palindrome (421432234124).

The spelling of 210222012112 in words is "two hundred ten billion, two hundred twenty-two million, twelve thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 56 79 112 158 316 487 553 632 974 1106 1264 1948 2212 3409 3896 4424 6818 7792 8848 13636 27272 38473 48787 54544 76946 97574 153892 195148 269311 307784 341509 390296 538622 615568 683018 780592 1077244 1366036 2154488 2732072 3854173 4308976 5464144 7708346 15416692 23759269 26979211 30833384 47518538 53958422 61666768 95037076 107916844 166314883 190074152 215833688 332629766 380148304 431667376 665259532 1330519064 1876982251 2661038128 3753964502 7507929004 13138875757 15015858008 26277751514 30031716016 52555503028 105111006056 210222012112