121301031220000 has 480 divisors, whose sum is σ = 310537110003120. Its totient is φ = 46570782720000.

The previous prime is 121301031219997. The next prime is 121301031220027. The reversal of 121301031220000 is 22130103121.

It can be written as a sum of positive squares in 40 ways, for example, as 101655677013136 + 19645354206864 = 10082444^2 + 4432308^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 137685619560 + ... + 137685620440.

Almost surely, 2^{121301031220000} is an apocalyptic number.

121301031220000 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 121301031220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155268555001560).

121301031220000 is an abundant number, since it is smaller than the sum of its proper divisors (189236078783120).

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

121301031220000 is an equidigital number, since it uses as much as digits as its factorization.

121301031220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074 (or 2051 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121301031220000 its reverse (22130103121), we get a palindrome (121323161323121).

The spelling of 121301031220000 in words is "one hundred twenty-one trillion, three hundred one billion, thirty-one million, two hundred twenty thousand".