12212776467 has 48 divisors (see below), whose sum is σ = 18448878240. Its totient is φ = 7775502336.

The previous prime is 12212776403. The next prime is 12212776487. The reversal of 12212776467 is 76467721221.

It is not a de Polignac number, because 12212776467 - 2⁶ = 12212776403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212776487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10932993 + ... + 10934109.

It is an arithmetic number, because the mean of its divisors is an integer number (384351630).

Almost surely, 2^12212776467 is an apocalyptic number.

12212776467 is a deficient number, since it is larger than the sum of its proper divisors (6236101773).

12212776467 is a wasteful number, since it uses less digits than its factorization.

12212776467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1569 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The spelling of 12212776467 in words is "twelve billion, two hundred twelve million, seven hundred seventy-six thousand, four hundred sixty-seven".