111212010210 has 32 divisors (see below), whose sum is σ = 305038657152. Its totient is φ = 25419888000.

The previous prime is 111212010209. The next prime is 111212010223. The reversal of 111212010210 is 12010212111.

It is a super-2 number, since 2×111212010210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264790291 + ... + 264790710.

It is an arithmetic number, because the mean of its divisors is an integer number (9532458036).

Almost surely, 2^111212010210 is an apocalyptic number.

111212010210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111212010210 is an abundant number, since it is smaller than the sum of its proper divisors (193826646942).

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

111212010210 is a wasteful number, since it uses less digits than its factorization.

111212010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529581018.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111212010210 its reverse (12010212111), we get a palindrome (123222222321).

The spelling of 111212010210 in words is "one hundred eleven billion, two hundred twelve million, ten thousand, two hundred ten".