1231021033122 has 16 divisors (see below), whose sum is σ = 2569087373760. Its totient is φ = 392499459792.

The previous prime is 1231021033111. The next prime is 1231021033139. The reversal of 1231021033122 is 2213301201321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4460220997 + ... + 4460221272.

It is an arithmetic number, because the mean of its divisors is an integer number (160567960860).

Almost surely, 2^{1231021033122} is an apocalyptic number.

1231021033122 is an abundant number, since it is smaller than the sum of its proper divisors (1338066340638).

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

1231021033122 is a wasteful number, since it uses less digits than its factorization.

1231021033122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8920442297.

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

Adding to 1231021033122 its reverse (2213301201321), we get a palindrome (3444322234443).

The spelling of 1231021033122 in words is "one trillion, two hundred thirty-one billion, twenty-one million, thirty-three thousand, one hundred twenty-two".