21310213122002 has 32 divisors (see below), whose sum is σ = 37741074038784. Its totient is φ = 8831110251600.

The previous prime is 21310213121959. The next prime is 21310213122017. The reversal of 21310213122002 is 20022131201312.

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, 19543574 + ... + 20605137.

It is an arithmetic number, because the mean of its divisors is an integer number (1179408563712).

Almost surely, 2^{21310213122002} is an apocalyptic number.

21310213122002 is a deficient number, since it is larger than the sum of its proper divisors (16430860916782).

21310213122002 is a wasteful number, since it uses less digits than its factorization.

21310213122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40149974.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21310213122002 its reverse (20022131201312), we get a palindrome (41332344323314).

The spelling of 21310213122002 in words is "twenty-one trillion, three hundred ten billion, two hundred thirteen million, one hundred twenty-two thousand, two".