121488032281 has 16 divisors (see below), whose sum is σ = 151473748608. Its totient is φ = 94660905600.

The previous prime is 121488032261. The next prime is 121488032363. The reversal of 121488032281 is 182230884121.

It is a cyclic number.

It is not a de Polignac number, because 121488032281 - 2²⁷ = 121353814553 is a prime.

It is a super-2 number, since 2×121488032281² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121488032201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2087331 + ... + 2144743.

It is an arithmetic number, because the mean of its divisors is an integer number (9467109288).

Almost surely, 2^121488032281 is an apocalyptic number.

121488032281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121488032281 is a deficient number, since it is larger than the sum of its proper divisors (29985716327).

121488032281 is a wasteful number, since it uses less digits than its factorization.

121488032281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84912.

The product of its (nonzero) digits is 49152, while the sum is 40.

The spelling of 121488032281 in words is "one hundred twenty-one billion, four hundred eighty-eight million, thirty-two thousand, two hundred eighty-one".