202122010123 has 16 divisors (see below), whose sum is σ = 228126067200. Its totient is φ = 177390952480.

The previous prime is 202122010117. The next prime is 202122010177. The reversal of 202122010123 is 321010221202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202122010123 - 2⁹ = 202122009611 is a prime.

It is a super-2 number, since 2×202122010123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202122010097 and 202122010106.

It is not an unprimeable number, because it can be changed into a prime (202122010193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3230148 + ... + 3292126.

It is an arithmetic number, because the mean of its divisors is an integer number (14257879200).

Almost surely, 2^202122010123 is an apocalyptic number.

202122010123 is a deficient number, since it is larger than the sum of its proper divisors (26004057077).

202122010123 is a wasteful number, since it uses less digits than its factorization.

202122010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72242.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 202122010123 its reverse (321010221202), we get a palindrome (523132231325).

The spelling of 202122010123 in words is "two hundred two billion, one hundred twenty-two million, ten thousand, one hundred twenty-three".