111100212012210 has 64 divisors (see below), whose sum is σ = 283399212395520. Its totient is φ = 27794922724800.

The previous prime is 111100212012161. The next prime is 111100212012211. The reversal of 111100212012210 is 12210212001111.

It is a happy number.

It is a super-2 number, since 2×111100212012210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111100212012210.

It is not an unprimeable number, because it can be changed into a prime (111100212012211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 946119216 + ... + 946236635.

It is an arithmetic number, because the mean of its divisors is an integer number (4428112693680).

Almost surely, 2^{111100212012210} is an apocalyptic number.

111100212012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111100212012210 is an abundant number, since it is smaller than the sum of its proper divisors (172299000383310).

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

111100212012210 is a wasteful number, since it uses less digits than its factorization.

111100212012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892355983.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111100212012210 its reverse (12210212001111), we get a palindrome (123310424013321).

The spelling of 111100212012210 in words is "one hundred eleven trillion, one hundred billion, two hundred twelve million, twelve thousand, two hundred ten".