121110112212210 has 96 divisors (see below), whose sum is σ = 349143667928640. Its totient is φ = 28878715267200.

The previous prime is 121110112212197. The next prime is 121110112212233. The reversal of 121110112212210 is 12212211011121.

It is a happy number.

121110112212210 is a `hidden beast` number, since 1 + 21 + 110 + 112 + 212 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1002672780 + ... + 1002793559.

It is an arithmetic number, because the mean of its divisors is an integer number (3636913207590).

Almost surely, 2^{121110112212210} is an apocalyptic number.

121110112212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121110112212210 is an abundant number, since it is smaller than the sum of its proper divisors (228033555716430).

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

121110112212210 is a wasteful number, since it uses less digits than its factorization.

121110112212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005466424 (or 2005466421 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121110112212210 its reverse (12212211011121), we get a palindrome (133322323223331).

The spelling of 121110112212210 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twelve million, two hundred twelve thousand, two hundred ten".