22022020220121 has 20 divisors (see below), whose sum is σ = 32900570204964. Its totient is φ = 14679794527200.

The previous prime is 22022020220099. The next prime is 22022020220173. The reversal of 22022020220121 is 12102202022022.

22022020220121 is a `hidden beast` number, since 2 + 20 + 220 + 202 + 201 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9708490064025 + 12313530156096 = 3115845^2 + 3509064^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22022020220121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22022020220094 and 22022020220103.

It is not an unprimeable number, because it can be changed into a prime (22022020220021) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13601950 + ... + 15134631.

Almost surely, 2^{22022020220121} is an apocalyptic number.

It is an amenable number.

22022020220121 is a deficient number, since it is larger than the sum of its proper divisors (10878549984843).

22022020220121 is an equidigital number, since it uses as much as digits as its factorization.

22022020220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28746054 (or 28746045 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22022020220121 its reverse (12102202022022), we get a palindrome (34124222242143).

The spelling of 22022020220121 in words is "twenty-two trillion, twenty-two billion, twenty million, two hundred twenty thousand, one hundred twenty-one".