1031321122212 has 24 divisors (see below), whose sum is σ = 2406514182912. Its totient is φ = 343759674400.

The previous prime is 1031321122163. The next prime is 1031321122229. The reversal of 1031321122212 is 2122211231301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445739 + ... + 2037842.

It is an arithmetic number, because the mean of its divisors is an integer number (100271424288).

Almost surely, 2^{1031321122212} is an apocalyptic number.

1031321122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1031321122212 is an abundant number, since it is smaller than the sum of its proper divisors (1375193060700).

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

1031321122212 is a wasteful number, since it uses less digits than its factorization.

1031321122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508259 (or 3508257 counting only the distinct ones).

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

Adding to 1031321122212 its reverse (2122211231301), we get a palindrome (3153532353513).

The spelling of 1031321122212 in words is "one trillion, thirty-one billion, three hundred twenty-one million, one hundred twenty-two thousand, two hundred twelve".