121212300013 has 8 divisors (see below), whose sum is σ = 138708489920. Its totient is φ = 103761146880.

The previous prime is 121212299987. The next prime is 121212300089. The reversal of 121212300013 is 310003212121.

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

It is a cyclic number.

It is not a de Polignac number, because 121212300013 - 2³³ = 112622365421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121212300013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212306013) 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, 11253423 + ... + 11264188.

It is an arithmetic number, because the mean of its divisors is an integer number (17338561240).

Almost surely, 2^121212300013 is an apocalyptic number.

It is an amenable number.

121212300013 is a deficient number, since it is larger than the sum of its proper divisors (17496189907).

121212300013 is an equidigital number, since it uses as much as digits as its factorization.

121212300013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22518387.

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

Adding to 121212300013 its reverse (310003212121), we get a palindrome (431215512134).

The spelling of 121212300013 in words is "one hundred twenty-one billion, two hundred twelve million, three hundred thousand, thirteen".