20012020092 has 18 divisors (see below), whose sum is σ = 50585939768. Its totient is φ = 6670673352.

The previous prime is 20012020057. The next prime is 20012020103. The reversal of 20012020092 is 29002021002.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×20012020092² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277944688 + ... + 277944759.

Almost surely, 2^20012020092 is an apocalyptic number.

It is an amenable number.

20012020092 is an abundant number, since it is smaller than the sum of its proper divisors (30573919676).

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

20012020092 is a wasteful number, since it uses less digits than its factorization.

20012020092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555889457 (or 555889452 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20012020092 its reverse (29002021002), we get a palindrome (49014041094).

The spelling of 20012020092 in words is "twenty billion, twelve million, twenty thousand, ninety-two".