121971062401 has 8 divisors (see below), whose sum is σ = 126234073224. Its totient is φ = 117769390080.

The previous prime is 121971062359. The next prime is 121971062441. The reversal of 121971062401 is 104260179121.

It can be written as a sum of positive squares in 4 ways, for example, as 4733302401 + 117237760000 = 68799^2 + 342400^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121971062401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121971062441) 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, 15330580 + ... + 15338533.

It is an arithmetic number, because the mean of its divisors is an integer number (15779259153).

Almost surely, 2^121971062401 is an apocalyptic number.

It is an amenable number.

121971062401 is a deficient number, since it is larger than the sum of its proper divisors (4263010823).

121971062401 is an equidigital number, since it uses as much as digits as its factorization.

121971062401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30669251.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 121971062401 in words is "one hundred twenty-one billion, nine hundred seventy-one million, sixty-two thousand, four hundred one".