121102212210 has 64 divisors (see below), whose sum is σ = 332859801600. Its totient is φ = 27622694592.

The previous prime is 121102212181. The next prime is 121102212233. The reversal of 121102212210 is 12212201121.

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 121102212210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 501370 + ... + 702549.

It is an arithmetic number, because the mean of its divisors is an integer number (5200934400).

Almost surely, 2^121102212210 is an apocalyptic number.

121102212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121102212210 is an abundant number, since it is smaller than the sum of its proper divisors (211757589390).

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

121102212210 is a wasteful number, since it uses less digits than its factorization.

121102212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204415.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121102212210 its reverse (12212201121), we get a palindrome (133314413331).

The spelling of 121102212210 in words is "one hundred twenty-one billion, one hundred two million, two hundred twelve thousand, two hundred ten".