12022581677 has 4 divisors (see below), whose sum is σ = 12146525916. Its totient is φ = 11898637440.

The previous prime is 12022581673. The next prime is 12022581691. The reversal of 12022581677 is 77618522021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3859639876 + 8162941801 = 62126^2 + 90349^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022581677 - 2² = 12022581673 is a prime.

It is a super-2 number, since 2×12022581677² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022581673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61971974 + ... + 61972167.

It is an arithmetic number, because the mean of its divisors is an integer number (3036631479).

Almost surely, 2^12022581677 is an apocalyptic number.

It is an amenable number.

12022581677 is a deficient number, since it is larger than the sum of its proper divisors (123944239).

12022581677 is an equidigital number, since it uses as much as digits as its factorization.

12022581677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123944238.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 12022581677 in words is "twelve billion, twenty-two million, five hundred eighty-one thousand, six hundred seventy-seven".