20021012111202 has 32 divisors (see below), whose sum is σ = 40052482464960. Its totient is φ = 6671927884800.

The previous prime is 20021012111197. The next prime is 20021012111249. The reversal of 20021012111202 is 20211121012002.

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 15 ways as a sum of consecutive naturals, for example, 664847698 + ... + 664877810.

It is an arithmetic number, because the mean of its divisors is an integer number (1251640077030).

Almost surely, 2^{20021012111202} is an apocalyptic number.

20021012111202 is an abundant number, since it is smaller than the sum of its proper divisors (20031470353758).

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

20021012111202 is a wasteful number, since it uses less digits than its factorization.

20021012111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55378.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20021012111202 its reverse (20211121012002), we get a palindrome (40232133123204).

The spelling of 20021012111202 in words is "twenty trillion, twenty-one billion, twelve million, one hundred eleven thousand, two hundred two".