20412800821402 has 32 divisors (see below), whose sum is σ = 33806851835904. Its totient is φ = 9166310353200.

The previous prime is 20412800821261. The next prime is 20412800821409.

20412800821402 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (20412800821409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38828077 + ... + 39350287.

It is an arithmetic number, because the mean of its divisors is an integer number (1056464119872).

Almost surely, 2^{20412800821402} is an apocalyptic number.

20412800821402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20412800821402 is a deficient number, since it is larger than the sum of its proper divisors (13394051014502).

20412800821402 is a wasteful number, since it uses less digits than its factorization.

20412800821402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543714.

The product of its (nonzero) digits is 16384, while the sum is 34.

The spelling of 20412800821402 in words is "twenty trillion, four hundred twelve billion, eight hundred million, eight hundred twenty-one thousand, four hundred two".