20021120002122 has 32 divisors (see below), whose sum is σ = 40703619652800. Its totient is φ = 6563503336320.

The previous prime is 20021120002043. The next prime is 20021120002141. The reversal of 20021120002122 is 22120002112002.

It is a super-2 number, since 2×20021120002122² (a number of 27 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 308872 + ... + 6335427.

It is an arithmetic number, because the mean of its divisors is an integer number (1271988114150).

Almost surely, 2^{20021120002122} is an apocalyptic number.

20021120002122 is an abundant number, since it is smaller than the sum of its proper divisors (20682499650678).

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

20021120002122 is a wasteful number, since it uses less digits than its factorization.

20021120002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6652598.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20021120002122 its reverse (22120002112002), we get a palindrome (42141122114124).

The spelling of 20021120002122 in words is "twenty trillion, twenty-one billion, one hundred twenty million, two thousand, one hundred twenty-two".