121231213410 has 64 divisors (see below), whose sum is σ = 293390760960. Its totient is φ = 32058037440.

The previous prime is 121231213379. The next prime is 121231213447. The reversal of 121231213410 is 14312132121.

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, 5723299 + ... + 5744441.

It is an arithmetic number, because the mean of its divisors is an integer number (4584230640).

Almost surely, 2^121231213410 is an apocalyptic number.

121231213410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121231213410 is an abundant number, since it is smaller than the sum of its proper divisors (172159547550).

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

121231213410 is a wasteful number, since it uses less digits than its factorization.

121231213410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22743.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121231213410 its reverse (14312132121), we get a palindrome (135543345531).

The spelling of 121231213410 in words is "one hundred twenty-one billion, two hundred thirty-one million, two hundred thirteen thousand, four hundred ten".