20211212100002 has 64 divisors (see below), whose sum is σ = 39448997664768. Its totient is φ = 7530594720000.

The previous prime is 20211212099999. The next prime is 20211212100031. The reversal of 20211212100002 is 20000121211202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a self number, because there is not a number n which added to its sum of digits gives 20211212100002.

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, 16887002 + ... + 18044202.

It is an arithmetic number, because the mean of its divisors is an integer number (616390588512).

Almost surely, 2^{20211212100002} is an apocalyptic number.

20211212100002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20211212100002 is a deficient number, since it is larger than the sum of its proper divisors (19237785564766).

20211212100002 is a wasteful number, since it uses less digits than its factorization.

20211212100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162175.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211212100002 its reverse (20000121211202), we get a palindrome (40211333311204).

The spelling of 20211212100002 in words is "twenty trillion, two hundred eleven billion, two hundred twelve million, one hundred thousand, two".