21223200311110 has 64 divisors (see below), whose sum is σ = 45974985569280. Its totient is φ = 6890853720960.

The previous prime is 21223200311083. The next prime is 21223200311143. The reversal of 21223200311110 is 1111300232212.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280495 + ... + 6521125.

It is an arithmetic number, because the mean of its divisors is an integer number (718359149520).

Almost surely, 2^{21223200311110} is an apocalyptic number.

21223200311110 is an abundant number, since it is smaller than the sum of its proper divisors (24751785258170).

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

21223200311110 is a wasteful number, since it uses less digits than its factorization.

21223200311110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243221.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21223200311110 its reverse (1111300232212), we get a palindrome (22334500543322).

The spelling of 21223200311110 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred million, three hundred eleven thousand, one hundred ten".