20200022021121 has 16 divisors (see below), whose sum is σ = 27216932688960. Its totient is φ = 13325617903680.

The previous prime is 20200022021111. The next prime is 20200022021167. The reversal of 20200022021121 is 12112022000202.

It is not a de Polignac number, because 20200022021121 - 2⁶ = 20200022021057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20200022021121.

It is not an unprimeable number, because it can be changed into a prime (20200022021111) 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 15 ways as a sum of consecutive naturals, for example, 90081990 + ... + 90305951.

It is an arithmetic number, because the mean of its divisors is an integer number (1701058293060).

Almost surely, 2^{20200022021121} is an apocalyptic number.

It is an amenable number.

20200022021121 is a deficient number, since it is larger than the sum of its proper divisors (7016910667839).

20200022021121 is a wasteful number, since it uses less digits than its factorization.

20200022021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180388336.

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

Adding to 20200022021121 its reverse (12112022000202), we get a palindrome (32312044021323).

The spelling of 20200022021121 in words is "twenty trillion, two hundred billion, twenty-two million, twenty-one thousand, one hundred twenty-one".