21119111193910 has 32 divisors (see below), whose sum is σ = 38190328092000. Its totient is φ = 8408634466560.

The previous prime is 21119111193893. The next prime is 21119111193913. The reversal of 21119111193910 is 1939111191112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21119111193913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3331696 + ... + 7303315.

It is an arithmetic number, because the mean of its divisors is an integer number (1193447752875).

Almost surely, 2^{21119111193910} is an apocalyptic number.

21119111193910 is a deficient number, since it is larger than the sum of its proper divisors (17071216898090).

21119111193910 is a wasteful number, since it uses less digits than its factorization.

21119111193910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10635936.

The product of its (nonzero) digits is 4374, while the sum is 40.

The spelling of 21119111193910 in words is "twenty-one trillion, one hundred nineteen billion, one hundred eleven million, one hundred ninety-three thousand, nine hundred ten".