121107663620 has 24 divisors (see below), whose sum is σ = 254332721664. Its totient is φ = 48441802976.

The previous prime is 121107663601. The next prime is 121107663673. The reversal of 121107663620 is 26366701121.

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, 1270877 + ... + 1362843.

It is an arithmetic number, because the mean of its divisors is an integer number (10597196736).

Almost surely, 2^121107663620 is an apocalyptic number.

121107663620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121107663620 is an abundant number, since it is smaller than the sum of its proper divisors (133225058044).

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

121107663620 is a wasteful number, since it uses less digits than its factorization.

121107663620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157819 (or 157817 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 121107663620 in words is "one hundred twenty-one billion, one hundred seven million, six hundred sixty-three thousand, six hundred twenty".