1021022202112 has 72 divisors (see below), whose sum is σ = 2354118312672. Its totient is φ = 436800921600.

The previous prime is 1021022202091. The next prime is 1021022202113. The reversal of 1021022202112 is 2112022201201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1021022202113) by changing a digit.

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, 10616214 + ... + 10711957.

It is an arithmetic number, because the mean of its divisors is an integer number (32696087676).

Almost surely, 2^{1021022202112} is an apocalyptic number.

It is an amenable number.

1021022202112 is an abundant number, since it is smaller than the sum of its proper divisors (1333096110560).

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

1021022202112 is a wasteful number, since it uses less digits than its factorization.

1021022202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21328215 (or 21328201 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021022202112 its reverse (2112022201201), we get a palindrome (3133044403313).

The spelling of 1021022202112 in words is "one trillion, twenty-one billion, twenty-two million, two hundred two thousand, one hundred twelve".