20210112221022 has 48 divisors (see below), whose sum is σ = 43891311784320. Its totient is φ = 6720900737616.

The previous prime is 20210112221009. The next prime is 20210112221053. The reversal of 20210112221022 is 22012221101202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20210112220986 and 20210112221004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127830673 + ... + 127988675.

It is an arithmetic number, because the mean of its divisors is an integer number (914402328840).

Almost surely, 2^{20210112221022} is an apocalyptic number.

20210112221022 is an abundant number, since it is smaller than the sum of its proper divisors (23681199563298).

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

20210112221022 is a wasteful number, since it uses less digits than its factorization.

20210112221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174637 (or 174634 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20210112221022 its reverse (22012221101202), we get a palindrome (42222333322224).

The spelling of 20210112221022 in words is "twenty trillion, two hundred ten billion, one hundred twelve million, two hundred twenty-one thousand, twenty-two".