20421412402 has 16 divisors (see below), whose sum is σ = 30962362752. Its totient is φ = 10100801200.

The previous prime is 20421412399. The next prime is 20421412447.

20421412402 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191463 + ... + 278389.

It is an arithmetic number, because the mean of its divisors is an integer number (1935147672).

Almost surely, 2^20421412402 is an apocalyptic number.

20421412402 is a deficient number, since it is larger than the sum of its proper divisors (10540950350).

20421412402 is a wasteful number, since it uses less digits than its factorization.

20421412402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88193.

The product of its (nonzero) digits is 1024, while the sum is 22.

The spelling of 20421412402 in words is "twenty billion, four hundred twenty-one million, four hundred twelve thousand, four hundred two".