20002121022 has 16 divisors (see below), whose sum is σ = 43081491600. Its totient is φ = 6154498752.

The previous prime is 20002121011. The next prime is 20002121033. The reversal of 20002121022 is 22012120002.

It is an interprime number because it is at equal distance from previous prime (20002121011) and next prime (20002121033).

It is a junction number, because it is equal to n+sod(n) for n = 20002120989 and 20002121007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128218647 + ... + 128218802.

It is an arithmetic number, because the mean of its divisors is an integer number (2692593225).

Almost surely, 2^20002121022 is an apocalyptic number.

20002121022 is an abundant number, since it is smaller than the sum of its proper divisors (23079370578).

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

20002121022 is a wasteful number, since it uses less digits than its factorization.

20002121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256437467.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20002121022 its reverse (22012120002), we get a palindrome (42014241024).

The spelling of 20002121022 in words is "twenty billion, two million, one hundred twenty-one thousand, twenty-two".