121212113001 has 8 divisors (see below), whose sum is σ = 184704172224. Its totient is φ = 69264064560.

The previous prime is 121212112997. The next prime is 121212113003. The reversal of 121212113001 is 100311212121.

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

It is not a de Polignac number, because 121212113001 - 2² = 121212112997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121212113003) 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, 2886002670 + ... + 2886002711.

It is an arithmetic number, because the mean of its divisors is an integer number (23088021528).

Almost surely, 2^121212113001 is an apocalyptic number.

It is an amenable number.

121212113001 is a deficient number, since it is larger than the sum of its proper divisors (63492059223).

121212113001 is an equidigital number, since it uses as much as digits as its factorization.

121212113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772005391.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121212113001 its reverse (100311212121), we get a palindrome (221523325122).

The spelling of 121212113001 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred thirteen thousand, one".