121191490560 has 176 divisors, whose sum is σ = 442998573696. Its totient is φ = 27700887552.

The previous prime is 121191490547. The next prime is 121191490583. The reversal of 121191490560 is 65094191121.

It is a super-2 number, since 2×121191490560² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456057 + ... + 671096.

Almost surely, 2^121191490560 is an apocalyptic number.

121191490560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121191490560 is an abundant number, since it is smaller than the sum of its proper divisors (321807083136).

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

121191490560 is a wasteful number, since it uses less digits than its factorization.

121191490560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127188 (or 1127170 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 39.

The spelling of 121191490560 in words is "one hundred twenty-one billion, one hundred ninety-one million, four hundred ninety thousand, five hundred sixty".