20220120210 has 64 divisors (see below), whose sum is σ = 49459196160. Its totient is φ = 5289580800.

The previous prime is 20220120209. The next prime is 20220120211. The reversal of 20220120210 is 1202102202.

It is an interprime number because it is at equal distance from previous prime (20220120209) and next prime (20220120211).

It is a super-2 number, since 2×20220120210² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20220120211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299659 + ... + 360881.

It is an arithmetic number, because the mean of its divisors is an integer number (772799940).

Almost surely, 2^20220120210 is an apocalyptic number.

20220120210 is an abundant number, since it is smaller than the sum of its proper divisors (29239075950).

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

20220120210 is a wasteful number, since it uses less digits than its factorization.

20220120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61443.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20220120210 its reverse (1202102202), we get a palindrome (21422222412).

The spelling of 20220120210 in words is "twenty billion, two hundred twenty million, one hundred twenty thousand, two hundred ten".