121213211322013 has 16 divisors (see below), whose sum is σ = 122530680889344. Its totient is φ = 119901476303280.

The previous prime is 121213211321953. The next prime is 121213211322061. The reversal of 121213211322013 is 310223112312121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121213211322013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213211326013) 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, 516856206 + ... + 517090672.

It is an arithmetic number, because the mean of its divisors is an integer number (7658167555584).

Almost surely, 2^{121213211322013} is an apocalyptic number.

It is an amenable number.

121213211322013 is a deficient number, since it is larger than the sum of its proper divisors (1317469567331).

121213211322013 is a wasteful number, since it uses less digits than its factorization.

121213211322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246672.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 121213211322013 its reverse (310223112312121), we get a palindrome (431436323634134).

The spelling of 121213211322013 in words is "one hundred twenty-one trillion, two hundred thirteen billion, two hundred eleven million, three hundred twenty-two thousand, thirteen".