1212231213013 has 16 divisors (see below), whose sum is σ = 1226283125760. Its totient is φ = 1198265066496.

The previous prime is 1212231212917. The next prime is 1212231213031. The reversal of 1212231213013 is 3103121322121.

It is a cyclic number.

It is not a de Polignac number, because 1212231213013 - 2⁹ = 1212231212501 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 (1212231214013) 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, 108258331 + ... + 108269527.

It is an arithmetic number, because the mean of its divisors is an integer number (76642695360).

Almost surely, 2^{1212231213013} is an apocalyptic number.

It is an amenable number.

1212231213013 is a deficient number, since it is larger than the sum of its proper divisors (14051912747).

1212231213013 is a wasteful number, since it uses less digits than its factorization.

1212231213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14916.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1212231213013 its reverse (3103121322121), we get a palindrome (4315352535134).

The spelling of 1212231213013 in words is "one trillion, two hundred twelve billion, two hundred thirty-one million, two hundred thirteen thousand, thirteen".