20420200202402 has 32 divisors (see below), whose sum is σ = 41125997614464. Its totient is φ = 7343928144000.

The previous prime is 20420200202333. The next prime is 20420200202419.

20420200202402 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5099948099 + ... + 5099952102.

It is an arithmetic number, because the mean of its divisors is an integer number (1285187425452).

Almost surely, 2^{20420200202402} is an apocalyptic number.

20420200202402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20420200202402 is an abundant number, since it is smaller than the sum of its proper divisors (20705797412062).

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

20420200202402 is a wasteful number, since it uses less digits than its factorization.

20420200202402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199900234.

The product of its (nonzero) digits is 1024, while the sum is 20.

It can be divided in two parts, 20420200 and 202402, that added together give a palindrome (20622602).

The spelling of 20420200202402 in words is "twenty trillion, four hundred twenty billion, two hundred million, two hundred two thousand, four hundred two".