121004210113440 has 96 divisors (see below), whose sum is σ = 391464971694720. Its totient is φ = 31395686943744.

The previous prime is 121004210113433. The next prime is 121004210113447. The reversal of 121004210113440 is 44311012400121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121004210113433) and next prime (121004210113447).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 121004210113440.

It is not an unprimeable number, because it can be changed into a prime (121004210113447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3406632300 + ... + 3406667819.

It is an arithmetic number, because the mean of its divisors is an integer number (4077760121820).

Almost surely, 2^{121004210113440} is an apocalyptic number.

121004210113440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121004210113440 is an abundant number, since it is smaller than the sum of its proper divisors (270460761581280).

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

121004210113440 is a wasteful number, since it uses less digits than its factorization.

121004210113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6813300174 (or 6813300166 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 121004210113440 its reverse (44311012400121), we get a palindrome (165315222513561).

The spelling of 121004210113440 in words is "one hundred twenty-one trillion, four billion, two hundred ten million, one hundred thirteen thousand, four hundred forty".