1212210112013 has 16 divisors (see below), whose sum is σ = 1260691750080. Its totient is φ = 1164639907200.

The previous prime is 1212210111943. The next prime is 1212210112073. The reversal of 1212210112013 is 3102110122121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1212210112013 - 2⁸ = 1212210111757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212210111982 and 1212210112000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210112073) 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, 9244478 + ... + 9374688.

It is an arithmetic number, because the mean of its divisors is an integer number (78793234380).

Almost surely, 2^{1212210112013} is an apocalyptic number.

It is an amenable number.

1212210112013 is a deficient number, since it is larger than the sum of its proper divisors (48481638067).

1212210112013 is a wasteful number, since it uses less digits than its factorization.

1212210112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133708.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1212210112013 its reverse (3102110122121), we get a palindrome (4314320234134).

The spelling of 1212210112013 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twelve thousand, thirteen".