111211210012210 has 64 divisors (see below), whose sum is σ = 262710828334080. Its totient is φ = 32838853533120.

The previous prime is 111211210012141. The next prime is 111211210012211. The reversal of 111211210012210 is 12210012112111.

It is not an unprimeable number, because it can be changed into a prime (111211210012211) 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, 3800778604 + ... + 3800807863.

It is an arithmetic number, because the mean of its divisors is an integer number (4104856692720).

Almost surely, 2^{111211210012210} is an apocalyptic number.

111211210012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111211210012210 is an abundant number, since it is smaller than the sum of its proper divisors (151499618321870).

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

111211210012210 is a wasteful number, since it uses less digits than its factorization.

111211210012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7601586511.

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

Adding to 111211210012210 its reverse (12210012112111), we get a palindrome (123421222124321).

The spelling of 111211210012210 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred ten million, twelve thousand, two hundred ten".