12220304477 has 8 divisors (see below), whose sum is σ = 12316238880. Its totient is φ = 12124410480.

The previous prime is 12220304443. The next prime is 12220304483. The reversal of 12220304477 is 77440302221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12220304477 - 2¹⁰ = 12220303453 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 (12220304177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951098 + ... + 963860.

It is an arithmetic number, because the mean of its divisors is an integer number (1539529860).

Almost surely, 2^12220304477 is an apocalyptic number.

It is an amenable number.

12220304477 is a deficient number, since it is larger than the sum of its proper divisors (95934403).

12220304477 is a wasteful number, since it uses less digits than its factorization.

12220304477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20203.

The product of its (nonzero) digits is 18816, while the sum is 32.

Adding to 12220304477 its reverse (77440302221), we get a palindrome (89660606698).

The spelling of 12220304477 in words is "twelve billion, two hundred twenty million, three hundred four thousand, four hundred seventy-seven".