121233312210 has 32 divisors (see below), whose sum is σ = 293534824320. Its totient is φ = 32042786048.

The previous prime is 121233312181. The next prime is 121233312223. The reversal of 121233312210 is 12213332121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17877630 + ... + 17884409.

It is an arithmetic number, because the mean of its divisors is an integer number (9172963260).

Almost surely, 2^121233312210 is an apocalyptic number.

121233312210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121233312210 is an abundant number, since it is smaller than the sum of its proper divisors (172301512110).

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

121233312210 is a wasteful number, since it uses less digits than its factorization.

121233312210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35762162.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121233312210 its reverse (12213332121), we get a palindrome (133446644331).

The spelling of 121233312210 in words is "one hundred twenty-one billion, two hundred thirty-three million, three hundred twelve thousand, two hundred ten".