21222110120122 has 32 divisors (see below), whose sum is σ = 33030437299200. Its totient is φ = 10219243205808.

The previous prime is 21222110120021. The next prime is 21222110120149. The reversal of 21222110120122 is 22102101122212.

It is a self number, because there is not a number n which added to its sum of digits gives 21222110120122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2907333 + ... + 7134199.

It is an arithmetic number, because the mean of its divisors is an integer number (1032201165600).

Almost surely, 2^{21222110120122} is an apocalyptic number.

21222110120122 is a deficient number, since it is larger than the sum of its proper divisors (11808327179078).

21222110120122 is a wasteful number, since it uses less digits than its factorization.

21222110120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227730.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21222110120122 its reverse (22102101122212), we get a palindrome (43324211242334).

The spelling of 21222110120122 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred ten million, one hundred twenty thousand, one hundred twenty-two".