21222010011122 has 16 divisors (see below), whose sum is σ = 33854027902560. Its totient is φ = 9942833398848.

The previous prime is 21222010011109. The next prime is 21222010011157. The reversal of 21222010011122 is 22111001022212.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 21222010011122.

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, 1374830972 + ... + 1374846407.

It is an arithmetic number, because the mean of its divisors is an integer number (2115876743910).

Almost surely, 2^{21222010011122} is an apocalyptic number.

21222010011122 is a deficient number, since it is larger than the sum of its proper divisors (12632017891438).

21222010011122 is a wasteful number, since it uses less digits than its factorization.

21222010011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749677625.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21222010011122 its reverse (22111001022212), we get a palindrome (43333011033334).

The spelling of 21222010011122 in words is "twenty-one trillion, two hundred twenty-two billion, ten million, eleven thousand, one hundred twenty-two".