222212013100 has 144 divisors (see below), whose sum is σ = 601457504256. Its totient is φ = 69229440000.

The previous prime is 222212013083. The next prime is 222212013139. The reversal of 222212013100 is 1310212222.

It is a happy number.

It is a super-2 number, since 2×222212013100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21562549 + ... + 21572851.

It is an arithmetic number, because the mean of its divisors is an integer number (4176788224).

Almost surely, 2^222212013100 is an apocalyptic number.

222212013100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222212013100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300728752128).

222212013100 is an abundant number, since it is smaller than the sum of its proper divisors (379245491156).

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

222212013100 is a wasteful number, since it uses less digits than its factorization.

222212013100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13136 (or 13129 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 222212013100 its reverse (1310212222), we get a palindrome (223522225322).

The spelling of 222212013100 in words is "two hundred twenty-two billion, two hundred twelve million, thirteen thousand, one hundred".