20211012001200 has 120 divisors (see below), whose sum is σ = 66492408818128. Its totient is φ = 5243938237440.

The previous prime is 20211012001199. The next prime is 20211012001277. The reversal of 20211012001200 is 210021011202.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×20211012001200² (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, 227557087 + ... + 227645886.

Almost surely, 2^{20211012001200} is an apocalyptic number.

20211012001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211012001200 is an abundant number, since it is smaller than the sum of its proper divisors (46281396816928).

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

20211012001200 is a wasteful number, since it uses less digits than its factorization.

20211012001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455203031 (or 455203020 counting only the distinct ones).

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

Adding to 20211012001200 its reverse (210021011202), we get a palindrome (20421033012402).

The spelling of 20211012001200 in words is "twenty trillion, two hundred eleven billion, twelve million, one thousand, two hundred".