121247232104620 has 24 divisors (see below), whose sum is σ = 255684539678400. Its totient is φ = 48295968602112.

The previous prime is 121247232104563. The next prime is 121247232104629. The reversal of 121247232104620 is 26401232742121.

It is a self number, because there is not a number n which added to its sum of digits gives 121247232104620.

It is not an unprimeable number, because it can be changed into a prime (121247232104629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12682760085 + ... + 12682769644.

It is an arithmetic number, because the mean of its divisors is an integer number (10653522486600).

Almost surely, 2^{121247232104620} is an apocalyptic number.

121247232104620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121247232104620 is an abundant number, since it is smaller than the sum of its proper divisors (134437307573780).

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

121247232104620 is a wasteful number, since it uses less digits than its factorization.

121247232104620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25365529977 (or 25365529975 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 121247232104620 its reverse (26401232742121), we get a palindrome (147648464846741).

The spelling of 121247232104620 in words is "one hundred twenty-one trillion, two hundred forty-seven billion, two hundred thirty-two million, one hundred four thousand, six hundred twenty".