20122100222122 has 8 divisors (see below), whose sum is σ = 30250373386500. Its totient is φ = 10038642426624.

The previous prime is 20122100222069. The next prime is 20122100222137. The reversal of 20122100222122 is 22122200122102.

It can be written as a sum of positive squares in 2 ways, for example, as 18489406604761 + 1632693617361 = 4299931^2 + 1277769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20122100222122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11203841097 + ... + 11203842892.

Almost surely, 2^{20122100222122} is an apocalyptic number.

20122100222122 is a deficient number, since it is larger than the sum of its proper divisors (10128273164378).

20122100222122 is a wasteful number, since it uses less digits than its factorization.

20122100222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22407684440.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20122100222122 its reverse (22122200122102), we get a palindrome (42244300344224).

The spelling of 20122100222122 in words is "twenty trillion, one hundred twenty-two billion, one hundred million, two hundred twenty-two thousand, one hundred twenty-two".