210122110020 has 48 divisors (see below), whose sum is σ = 593739558720. Its totient is φ = 55518500736.

The previous prime is 210122110013. The next prime is 210122110043. The reversal of 210122110020 is 20011221012.

It is a super-2 number, since 2×210122110020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 210122109978 and 210122110005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16057842 + ... + 16070921.

It is an arithmetic number, because the mean of its divisors is an integer number (12369574140).

Almost surely, 2^210122110020 is an apocalyptic number.

210122110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210122110020 is an abundant number, since it is smaller than the sum of its proper divisors (383617448700).

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

210122110020 is a wasteful number, since it uses less digits than its factorization.

210122110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32128884 (or 32128882 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210122110020 its reverse (20011221012), we get a palindrome (230133331032).

The spelling of 210122110020 in words is "two hundred ten billion, one hundred twenty-two million, one hundred ten thousand, twenty".