121231211322 has 32 divisors (see below), whose sum is σ = 261347329152. Its totient is φ = 37268489664.

The previous prime is 121231211219. The next prime is 121231211351. The reversal of 121231211322 is 223112132121.

It is a nude number because it is divisible by every one of its digits.

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, 608598 + ... + 782849.

It is an arithmetic number, because the mean of its divisors is an integer number (8167104036).

Almost surely, 2^121231211322 is an apocalyptic number.

121231211322 is an abundant number, since it is smaller than the sum of its proper divisors (140116117830).

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

121231211322 is a wasteful number, since it uses less digits than its factorization.

121231211322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392582.

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

Adding to 121231211322 its reverse (223112132121), we get a palindrome (344343343443).

The spelling of 121231211322 in words is "one hundred twenty-one billion, two hundred thirty-one million, two hundred eleven thousand, three hundred twenty-two".