12220010001 has 48 divisors (see below), whose sum is σ = 18939834368. Its totient is φ = 7865326800.

The previous prime is 12220009979. The next prime is 12220010027. The reversal of 12220010001 is 10001002221.

It is not a de Polignac number, because 12220010001 - 2⁵ = 12220009969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220010041) 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, 3666906 + ... + 3670236.

Almost surely, 2^12220010001 is an apocalyptic number.

It is an amenable number.

12220010001 is a deficient number, since it is larger than the sum of its proper divisors (6719824367).

12220010001 is an equidigital number, since it uses as much as digits as its factorization.

12220010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864 (or 3852 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12220010001 its reverse (10001002221), we get a palindrome (22221012222).

The spelling of 12220010001 in words is "twelve billion, two hundred twenty million, ten thousand, one".