121241411220 has 24 divisors (see below), whose sum is σ = 339475951584. Its totient is φ = 32331042976.

The previous prime is 121241411219. The next prime is 121241411237. The reversal of 121241411220 is 22114142121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010345034 + ... + 1010345153.

It is an arithmetic number, because the mean of its divisors is an integer number (14144831316).

Almost surely, 2^121241411220 is an apocalyptic number.

121241411220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121241411220 is an abundant number, since it is smaller than the sum of its proper divisors (218234540364).

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

121241411220 is a wasteful number, since it uses less digits than its factorization.

121241411220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020690199 (or 2020690197 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121241411220 its reverse (22114142121), we get a palindrome (143355553341).

The spelling of 121241411220 in words is "one hundred twenty-one billion, two hundred forty-one million, four hundred eleven thousand, two hundred twenty".