22012221121122 has 16 divisors (see below), whose sum is σ = 44085672351360. Its totient is φ = 7327202022192.

The previous prime is 22012221121109. The next prime is 22012221121123. The reversal of 22012221121122 is 22112112221022.

It is not an unprimeable number, because it can be changed into a prime (22012221121123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2551249873 + ... + 2551258500.

It is an arithmetic number, because the mean of its divisors is an integer number (2755354521960).

Almost surely, 2^{22012221121122} is an apocalyptic number.

22012221121122 is an abundant number, since it is smaller than the sum of its proper divisors (22073451230238).

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

22012221121122 is a wasteful number, since it uses less digits than its factorization.

22012221121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5102509097.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22012221121122 its reverse (22112112221022), we get a palindrome (44124333342144).

The spelling of 22012221121122 in words is "twenty-two trillion, twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".