1021122131312 has 40 divisors (see below), whose sum is σ = 2031877295280. Its totient is φ = 496938060800.

The previous prime is 1021122131297. The next prime is 1021122131329. The reversal of 1021122131312 is 2131312211201.

It is a super-2 number, since 2×1021122131312² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 5259593 + ... + 5450280.

It is an arithmetic number, because the mean of its divisors is an integer number (50796932382).

Almost surely, 2^{1021122131312} is an apocalyptic number.

It is an amenable number.

1021122131312 is a deficient number, since it is larger than the sum of its proper divisors (1010755163968).

1021122131312 is a wasteful number, since it uses less digits than its factorization.

1021122131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10710041 (or 10710035 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1021122131312 its reverse (2131312211201), we get a palindrome (3152434342513).

The spelling of 1021122131312 in words is "one trillion, twenty-one billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred twelve".