21110011222 has 16 divisors (see below), whose sum is σ = 33559086240. Its totient is φ = 9924812928.

The previous prime is 21110011217. The next prime is 21110011231. The reversal of 21110011222 is 22211001112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254058 + ... + 326749.

It is an arithmetic number, because the mean of its divisors is an integer number (2097442890).

Almost surely, 2^21110011222 is an apocalyptic number.

21110011222 is a deficient number, since it is larger than the sum of its proper divisors (12449075018).

21110011222 is a wasteful number, since it uses less digits than its factorization.

21110011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581895.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21110011222 its reverse (22211001112), we get a palindrome (43321012334).

The spelling of 21110011222 in words is "twenty-one billion, one hundred ten million, eleven thousand, two hundred twenty-two".