20112212111122 has 16 divisors (see below), whose sum is σ = 30271608564120. Its totient is φ = 10021676664832.

The previous prime is 20112212111111. The next prime is 20112212111149. The reversal of 20112212111122 is 22111121221102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17938943522721 + 2173268588401 = 4235439^2 + 1474201^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20112212111122.

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, 106492608 + ... + 106681300.

Almost surely, 2^{20112212111122} is an apocalyptic number.

20112212111122 is a deficient number, since it is larger than the sum of its proper divisors (10159396452998).

20112212111122 is a wasteful number, since it uses less digits than its factorization.

20112212111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370877.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 20112212111122 its reverse (22111121221102), we get a palindrome (42223333332224).

The spelling of 20112212111122 in words is "twenty trillion, one hundred twelve billion, two hundred twelve million, one hundred eleven thousand, one hundred twenty-two".