1021220133112 has 32 divisors (see below), whose sum is σ = 2053085918400. Its totient is φ = 474490957824.

The previous prime is 1021220133107. The next prime is 1021220133149. The reversal of 1021220133112 is 2113310221201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021220133112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47514393 + ... + 47535880.

It is an arithmetic number, because the mean of its divisors is an integer number (64158934950).

Almost surely, 2^{1021220133112} is an apocalyptic number.

It is an amenable number.

1021220133112 is an abundant number, since it is smaller than the sum of its proper divisors (1031865785288).

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

1021220133112 is a wasteful number, since it uses less digits than its factorization.

1021220133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95050375 (or 95050371 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1021220133112 its reverse (2113310221201), we get a palindrome (3134530354313).

The spelling of 1021220133112 in words is "one trillion, twenty-one billion, two hundred twenty million, one hundred thirty-three thousand, one hundred twelve".