20102020122138 has 16 divisors (see below), whose sum is σ = 40204207478016. Its totient is φ = 6700645501760.

The previous prime is 20102020122137. The next prime is 20102020122251. The reversal of 20102020122138 is 83122102020102.

It is not an unprimeable number, because it can be changed into a prime (20102020122133) 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, 5377503 + ... + 8313938.

It is an arithmetic number, because the mean of its divisors is an integer number (2512762967376).

Almost surely, 2^{20102020122138} is an apocalyptic number.

20102020122138 is an abundant number, since it is smaller than the sum of its proper divisors (20102187355878).

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

20102020122138 is a wasteful number, since it uses less digits than its factorization.

20102020122138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13936149.

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 20102020122138 in words is "twenty trillion, one hundred two billion, twenty million, one hundred twenty-two thousand, one hundred thirty-eight".