122291686430 has 16 divisors (see below), whose sum is σ = 224278339104. Its totient is φ = 47993718240.

The previous prime is 122291686357. The next prime is 122291686457. The reversal of 122291686430 is 34686192221.

122291686430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122291686430² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115368986 + ... + 115370045.

It is an arithmetic number, because the mean of its divisors is an integer number (14017396194).

Almost surely, 2^122291686430 is an apocalyptic number.

122291686430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122291686430 is a deficient number, since it is larger than the sum of its proper divisors (101986652674).

122291686430 is a wasteful number, since it uses less digits than its factorization.

122291686430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230739091.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 122291686430 in words is "one hundred twenty-two billion, two hundred ninety-one million, six hundred eighty-six thousand, four hundred thirty".