20210112122 has 8 divisors (see below), whose sum is σ = 31360518900. Its totient is φ = 9756605824.

The previous prime is 20210112077. The next prime is 20210112133. The reversal of 20210112122 is 22121101202.

It can be written as a sum of positive squares in 2 ways, for example, as 17718005881 + 2492106241 = 133109^2 + 49921^2 .

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

It is a super-2 number, since 2×20210112122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20210112097 and 20210112106.

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, 174225047 + ... + 174225162.

Almost surely, 2^20210112122 is an apocalyptic number.

20210112122 is a deficient number, since it is larger than the sum of its proper divisors (11150406778).

20210112122 is a wasteful number, since it uses less digits than its factorization.

20210112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348450240.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20210112122 its reverse (22121101202), we get a palindrome (42331213324).

The spelling of 20210112122 in words is "twenty billion, two hundred ten million, one hundred twelve thousand, one hundred twenty-two".