202124221431 has 24 divisors (see below), whose sum is σ = 306440841840. Its totient is φ = 118275400320.

The previous prime is 202124221417. The next prime is 202124221433. The reversal of 202124221431 is 134122421202.

It is not a de Polignac number, because 202124221431 - 2⁷ = 202124221303 is a prime.

It is a super-2 number, since 2×202124221431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202124221433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9589750 + ... + 9610803.

It is an arithmetic number, because the mean of its divisors is an integer number (12768368410).

Almost surely, 2^202124221431 is an apocalyptic number.

202124221431 is a deficient number, since it is larger than the sum of its proper divisors (104316620409).

202124221431 is a wasteful number, since it uses less digits than its factorization.

202124221431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19200607 (or 19200596 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 202124221431 its reverse (134122421202), we get a palindrome (336246642633).

The spelling of 202124221431 in words is "two hundred two billion, one hundred twenty-four million, two hundred twenty-one thousand, four hundred thirty-one".