1212162670667 has 16 divisors (see below), whose sum is σ = 1346865673440. Its totient is φ = 1083775161600.

The previous prime is 1212162670637. The next prime is 1212162670673. The reversal of 1212162670667 is 7660762612121.

It is a cyclic number.

It is not a de Polignac number, because 1212162670667 - 2⁶ = 1212162670603 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212162670627) 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, 8106584 + ... + 8254757.

It is an arithmetic number, because the mean of its divisors is an integer number (84179104590).

Almost surely, 2^{1212162670667} is an apocalyptic number.

1212162670667 is a deficient number, since it is larger than the sum of its proper divisors (134703002773).

1212162670667 is a wasteful number, since it uses less digits than its factorization.

1212162670667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16361534.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 1212162670667 in words is "one trillion, two hundred twelve billion, one hundred sixty-two million, six hundred seventy thousand, six hundred sixty-seven".