21312421002210 has 32 divisors (see below), whose sum is σ = 55084411206720. Its totient is φ = 5246134400448.

The previous prime is 21312421002181. The next prime is 21312421002227. The reversal of 21312421002210 is 1220012421312.

It is a happy number.

It is an unprimeable number.

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, 27323616280 + ... + 27323617059.

It is an arithmetic number, because the mean of its divisors is an integer number (1721387850210).

Almost surely, 2^{21312421002210} is an apocalyptic number.

21312421002210 is an abundant number, since it is smaller than the sum of its proper divisors (33771990204510).

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

21312421002210 is a wasteful number, since it uses less digits than its factorization.

21312421002210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54647233362.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21312421002210 its reverse (1220012421312), we get a palindrome (22532433423522).

The spelling of 21312421002210 in words is "twenty-one trillion, three hundred twelve billion, four hundred twenty-one million, two thousand, two hundred ten".