20011020202122 has 32 divisors (see below), whose sum is σ = 41762461852800. Its totient is φ = 6380274447360.

The previous prime is 20011020202111. The next prime is 20011020202133. The reversal of 20011020202122 is 22120202011002.

It is an interprime number because it is at equal distance from previous prime (20011020202111) and next prime (20011020202133).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19266754 + ... + 20278802.

It is an arithmetic number, because the mean of its divisors is an integer number (1305076932900).

Almost surely, 2^{20011020202122} is an apocalyptic number.

20011020202122 is an abundant number, since it is smaller than the sum of its proper divisors (21751441650678).

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

20011020202122 is a wasteful number, since it uses less digits than its factorization.

20011020202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155358.

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

Adding to 20011020202122 its reverse (22120202011002), we get a palindrome (42131222213124).

The spelling of 20011020202122 in words is "twenty trillion, eleven billion, twenty million, two hundred two thousand, one hundred twenty-two".