104221520402 has 4 divisors (see below), whose sum is σ = 156332280606. Its totient is φ = 52110760200.

The previous prime is 104221520387. The next prime is 104221520443. The reversal of 104221520402 is 204025122401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59653666081 + 44567854321 = 244241^2 + 211111^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26055380099 + ... + 26055380102.

Almost surely, 2^104221520402 is an apocalyptic number.

104221520402 is a deficient number, since it is larger than the sum of its proper divisors (52110760204).

104221520402 is an equidigital number, since it uses as much as digits as its factorization.

104221520402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52110760203.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 104221520402 its reverse (204025122401), we get a palindrome (308246642803).

The spelling of 104221520402 in words is "one hundred four billion, two hundred twenty-one million, five hundred twenty thousand, four hundred two".