20002122111000 has 128 divisors (see below), whose sum is σ = 65691180172800. Its totient is φ = 5053167676800.

The previous prime is 20002122110953. The next prime is 20002122111073. The reversal of 20002122111000 is 11122120002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175400212 + ... + 175514211.

It is an arithmetic number, because the mean of its divisors is an integer number (513212345100).

Almost surely, 2^{20002122111000} is an apocalyptic number.

20002122111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002122111000 is an abundant number, since it is smaller than the sum of its proper divisors (45689058061800).

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

20002122111000 is a wasteful number, since it uses less digits than its factorization.

20002122111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350914466 (or 350914452 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20002122111000 its reverse (11122120002), we get a palindrome (20013244231002).

The spelling of 20002122111000 in words is "twenty trillion, two billion, one hundred twenty-two million, one hundred eleven thousand".