20220120210123 has 12 divisors (see below), whose sum is σ = 30213972728160. Its totient is φ = 13015249790256.

The previous prime is 20220120210083. The next prime is 20220120210127. The reversal of 20220120210123 is 32101202102202.

It is not a de Polignac number, because 20220120210123 - 2⁴⁴ = 2627934165707 is a prime.

It is a super-2 number, since 2×20220120210123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20220120210096 and 20220120210105.

It is not an unprimeable number, because it can be changed into a prime (20220120210127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38735862211 + ... + 38735862732.

It is an arithmetic number, because the mean of its divisors is an integer number (2517831060680).

Almost surely, 2^{20220120210123} is an apocalyptic number.

20220120210123 is a deficient number, since it is larger than the sum of its proper divisors (9993852518037).

20220120210123 is a wasteful number, since it uses less digits than its factorization.

20220120210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77471724978 (or 77471724975 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20220120210123 its reverse (32101202102202), we get a palindrome (52321322312325).

It can be divided in two parts, 202201 and 20210123, that added together give a square (20412324 = 4518²).

The spelling of 20220120210123 in words is "twenty trillion, two hundred twenty billion, one hundred twenty million, two hundred ten thousand, one hundred twenty-three".