20002021120992 has 96 divisors (see below), whose sum is σ = 52664516083872. Its totient is φ = 6647135698944.

The previous prime is 20002021120987. The next prime is 20002021121009. The reversal of 20002021120992 is 29902112020002.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×20002021120992² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103639368 + ... + 103832184.

It is an arithmetic number, because the mean of its divisors is an integer number (548588709207).

Almost surely, 2^{20002021120992} is an apocalyptic number.

It is an amenable number.

20002021120992 is an abundant number, since it is smaller than the sum of its proper divisors (32662494962880).

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

20002021120992 is a wasteful number, since it uses less digits than its factorization.

20002021120992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196100 (or 196092 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

Adding to 20002021120992 its reverse (29902112020002), we get a palindrome (49904133140994).

The spelling of 20002021120992 in words is "twenty trillion, two billion, twenty-one million, one hundred twenty thousand, nine hundred ninety-two".