121186422684240 has 40 divisors (see below), whose sum is σ = 375677910321888. Its totient is φ = 32316379382400.

The previous prime is 121186422684227. The next prime is 121186422684247. The reversal of 121186422684240 is 42486224681121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×121186422684240² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121186422684247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252471713686 + ... + 252471714165.

Almost surely, 2^{121186422684240} is an apocalyptic number.

121186422684240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121186422684240 is an abundant number, since it is smaller than the sum of its proper divisors (254491487637648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121186422684240 is a wasteful number, since it uses less digits than its factorization.

121186422684240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504943427867 (or 504943427861 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 51.

The spelling of 121186422684240 in words is "one hundred twenty-one trillion, one hundred eighty-six billion, four hundred twenty-two million, six hundred eighty-four thousand, two hundred forty".