121162256241540 has 96 divisors (see below), whose sum is σ = 359230478753664. Its totient is φ = 30407655352320.

The previous prime is 121162256241487. The next prime is 121162256241547. The reversal of 121162256241540 is 45142652261121.

It is a junction number, because it is equal to n+sod(n) for n = 121162256241492 and 121162256241501.

It is not an unprimeable number, because it can be changed into a prime (121162256241547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15044730 + ... + 21648750.

It is an arithmetic number, because the mean of its divisors is an integer number (3741984153684).

Almost surely, 2^{121162256241540} is an apocalyptic number.

121162256241540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121162256241540 is an abundant number, since it is smaller than the sum of its proper divisors (238068222512124).

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

121162256241540 is a wasteful number, since it uses less digits than its factorization.

121162256241540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622037 (or 6622035 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 121162256241540 in words is "one hundred twenty-one trillion, one hundred sixty-two billion, two hundred fifty-six million, two hundred forty-one thousand, five hundred forty".