121337221120 has 208 divisors, whose sum is σ = 299815762752. Its totient is φ = 47109242880.

The previous prime is 121337221079. The next prime is 121337221133. The reversal of 121337221120 is 21122733121.

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, 185814714 + ... + 185815366.

Almost surely, 2^121337221120 is an apocalyptic number.

121337221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121337221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149907881376).

121337221120 is an abundant number, since it is smaller than the sum of its proper divisors (178478541632).

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

121337221120 is an equidigital number, since it uses as much as digits as its factorization.

121337221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 121337221120 its reverse (21122733121), we get a palindrome (142459954241).

The spelling of 121337221120 in words is "one hundred twenty-one billion, three hundred thirty-seven million, two hundred twenty-one thousand, one hundred twenty".