21012442203110 has 64 divisors (see below), whose sum is σ = 39844821240000. Its totient is φ = 7956257882112.

The previous prime is 21012442203107. The next prime is 21012442203143. The reversal of 21012442203110 is 1130224421012.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 1585957766 + ... + 1585971014.

It is an arithmetic number, because the mean of its divisors is an integer number (622575331875).

Almost surely, 2^{21012442203110} is an apocalyptic number.

21012442203110 is a deficient number, since it is larger than the sum of its proper divisors (18832379036890).

21012442203110 is a wasteful number, since it uses less digits than its factorization.

21012442203110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19305.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21012442203110 its reverse (1130224421012), we get a palindrome (22142666624122).

The spelling of 21012442203110 in words is "twenty-one trillion, twelve billion, four hundred forty-two million, two hundred three thousand, one hundred ten".