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2022220102212 = 2232315171782301
BaseRepresentation
bin11101011011010101101…
…101011111101001000100
321011022200222212222220200
4131123111231133221010
5231113001321232322
64144554534530500
7266046333154122
oct35332555375104
97138628788820
102022220102212
1170a68958a522
12287b05506a30
13118904b8b44b
146dc39966912
1537908ad68ac
hex1d6d5b5fa44

2022220102212 has 36 divisors (see below), whose sum is σ = 5111888093676. Its totient is φ = 674051601600.

The previous prime is 2022220102181. The next prime is 2022220102219. The reversal of 2022220102212 is 2122010222202.

2022220102212 is a `hidden beast` number, since 20 + 222 + 201 + 0 + 221 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1139867981316 + 882352120896 = 1067646^2 + 939336^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2022220102219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243462 + ... + 2025762.

It is an arithmetic number, because the mean of its divisors is an integer number (141996891491).

Almost surely, 22022220102212 is an apocalyptic number.

It is an amenable number.

2022220102212 is an abundant number, since it is smaller than the sum of its proper divisors (3089667991464).

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

2022220102212 is a wasteful number, since it uses less digits than its factorization.

2022220102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813828 (or 1813823 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2022220102212 its reverse (2122010222202), we get a palindrome (4144230324414).

The spelling of 2022220102212 in words is "two trillion, twenty-two billion, two hundred twenty million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 31517 63034 94551 126068 189102 283653 378204 567306 1134612 1782301 3564602 5346903 7129204 10693806 16040709 21387612 32081418 64162836 56172780617 112345561234 168518341851 224691122468 337036683702 505555025553 674073367404 1011110051106 2022220102212