20110021012200 has 96 divisors (see below), whose sum is σ = 71246931600960. Its totient is φ = 4596576230400.

The previous prime is 20110021012121. The next prime is 20110021012219. The reversal of 20110021012200 is 221012001102.

It is a super-2 number, since 2×20110021012200² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2394045921 + ... + 2394054320.

It is an arithmetic number, because the mean of its divisors is an integer number (742155537510).

Almost surely, 2^{20110021012200} is an apocalyptic number.

20110021012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110021012200 is an abundant number, since it is smaller than the sum of its proper divisors (51136910588760).

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

20110021012200 is a wasteful number, since it uses less digits than its factorization.

20110021012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788100267 (or 4788100258 counting only the distinct ones).

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

Adding to 20110021012200 its reverse (221012001102), we get a palindrome (20331033013302).

The spelling of 20110021012200 in words is "twenty trillion, one hundred ten billion, twenty-one million, twelve thousand, two hundred".