12220100001 has 24 divisors (see below), whose sum is σ = 18435605760. Its totient is φ = 7792190496.

The previous prime is 12220099993. The next prime is 12220100003. The reversal of 12220100001 is 10000102221.

It is not a de Polignac number, because 12220100001 - 2³ = 12220099993 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (12220100003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291345 + ... + 330638.

It is an arithmetic number, because the mean of its divisors is an integer number (768150240).

Almost surely, 2^12220100001 is an apocalyptic number.

It is an amenable number.

12220100001 is a deficient number, since it is larger than the sum of its proper divisors (6215505759).

12220100001 is a wasteful number, since it uses less digits than its factorization.

12220100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622085 (or 622082 counting only the distinct ones).

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

Adding to 12220100001 its reverse (10000102221), we get a palindrome (22220202222).

The spelling of 12220100001 in words is "twelve billion, two hundred twenty million, one hundred thousand, one".