202202122012123 has 4 divisors (see below), whose sum is σ = 202204212290920. Its totient is φ = 202200031733328.

The previous prime is 202202122012103. The next prime is 202202122012199. The reversal of 202202122012123 is 321210221202202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202202122012123 - 2¹⁷ = 202202121881051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202202122012094 and 202202122012103.

It is not an unprimeable number, because it can be changed into a prime (202202122012103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044994290 + ... + 1045187767.

It is an arithmetic number, because the mean of its divisors is an integer number (50551053072730).

Almost surely, 2^{202202122012123} is an apocalyptic number.

202202122012123 is a deficient number, since it is larger than the sum of its proper divisors (2090278797).

202202122012123 is an equidigital number, since it uses as much as digits as its factorization.

202202122012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090278796.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 202202122012123 its reverse (321210221202202), we get a palindrome (523412343214325).

The spelling of 202202122012123 in words is "two hundred two trillion, two hundred two billion, one hundred twenty-two million, twelve thousand, one hundred twenty-three".