122209892431 has 32 divisors (see below), whose sum is σ = 139284023040. Its totient is φ = 107152508320.

The previous prime is 122209892407. The next prime is 122209892443. The reversal of 122209892431 is 134298902221.

It is not a de Polignac number, because 122209892431 - 2⁹ = 122209891919 is a prime.

It is a super-2 number, since 2×122209892431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122209892131) 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, 4147356 + ... + 4176718.

It is an arithmetic number, because the mean of its divisors is an integer number (4352625720).

Almost surely, 2^122209892431 is an apocalyptic number.

122209892431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122209892431 is a deficient number, since it is larger than the sum of its proper divisors (17074130609).

122209892431 is an equidigital number, since it uses as much as digits as its factorization.

122209892431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29508 (or 29486 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 122209892431 in words is "one hundred twenty-two billion, two hundred nine million, eight hundred ninety-two thousand, four hundred thirty-one".