21223223251122 has 16 divisors (see below), whose sum is σ = 42465006410112. Its totient is φ = 7071314432400.

The previous prime is 21223223251093. The next prime is 21223223251123. The reversal of 21223223251122 is 22115232232212.

It is a self number, because there is not a number n which added to its sum of digits gives 21223223251122.

It is not an unprimeable number, because it can be changed into a prime (21223223251123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773314629 + ... + 773342072.

It is an arithmetic number, because the mean of its divisors is an integer number (2654062900632).

Almost surely, 2^{21223223251122} is an apocalyptic number.

21223223251122 is an abundant number, since it is smaller than the sum of its proper divisors (21241783158990).

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

21223223251122 is a wasteful number, since it uses less digits than its factorization.

21223223251122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546658993.

The product of its digits is 11520, while the sum is 30.

Adding to 21223223251122 its reverse (22115232232212), we get a palindrome (43338455483334).

The spelling of 21223223251122 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred twenty-three million, two hundred fifty-one thousand, one hundred twenty-two".