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11202220212 = 2232657351343
BaseRepresentation
bin10100110111011010…
…00101000010110100
31001220200221202012220
422123231011002310
5140420232021322
65051330242340
7544413205101
oct123355050264
931820852186
1011202220212
1148293a7937
1222077263b0
131096aab391
14783aadaa8
154586d655c
hex29bb450b4

11202220212 has 24 divisors (see below), whose sum is σ = 26148425856. Its totient is φ = 3732657408.

The previous prime is 11202220189. The next prime is 11202220213. The reversal of 11202220212 is 21202220211.

It is a junction number, because it is equal to n+sod(n) for n = 11202220191 and 11202220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202220213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143788 + ... + 207555.

It is an arithmetic number, because the mean of its divisors is an integer number (1089517744).

Almost surely, 211202220212 is an apocalyptic number.

11202220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11202220212 is an abundant number, since it is smaller than the sum of its proper divisors (14946205644).

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

11202220212 is a wasteful number, since it uses less digits than its factorization.

11202220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354007 (or 354005 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11202220212 its reverse (21202220211), we get a palindrome (32404440423).

Subtracting 11202220212 from its reverse (21202220211), we obtain a palindrome (9999999999).

The spelling of 11202220212 in words is "eleven billion, two hundred two million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 2657 5314 7971 10628 15942 31884 351343 702686 1054029 1405372 2108058 4216116 933518351 1867036702 2800555053 3734073404 5601110106 11202220212