121183172288 has 56 divisors (see below), whose sum is σ = 247405958832. Its totient is φ = 58869448704.

The previous prime is 121183172251. The next prime is 121183172329. The reversal of 121183172288 is 882271381121.

It is a super-2 number, since 2×121183172288² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119456 + ... + 506592.

Almost surely, 2^121183172288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121183172288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123702979416).

121183172288 is an abundant number, since it is smaller than the sum of its proper divisors (126222786544).

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

121183172288 is an equidigital number, since it uses as much as digits as its factorization.

121183172288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387289 (or 387279 counting only the distinct ones).

The product of its digits is 86016, while the sum is 44.

The spelling of 121183172288 in words is "one hundred twenty-one billion, one hundred eighty-three million, one hundred seventy-two thousand, two hundred eighty-eight".