20220121222122 has 16 divisors (see below), whose sum is σ = 40618393294752. Its totient is φ = 6710348598960.

The previous prime is 20220121222111. The next prime is 20220121222219. The reversal of 20220121222122 is 22122212102202.

It is an unprimeable number.

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, 7422950629 + ... + 7422953352.

It is an arithmetic number, because the mean of its divisors is an integer number (2538649580922).

Almost surely, 2^{20220121222122} is an apocalyptic number.

20220121222122 is an abundant number, since it is smaller than the sum of its proper divisors (20398272072630).

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

20220121222122 is a wasteful number, since it uses less digits than its factorization.

20220121222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14845904213.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20220121222122 its reverse (22122212102202), we get a palindrome (42342333324324).

The spelling of 20220121222122 in words is "twenty trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".