2221100004 has 48 divisors (see below), whose sum is σ = 5220452160. Its totient is φ = 734976000.

The previous prime is 2221099999. The next prime is 2221100023. The reversal of 2221100004 is 4000011222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062192 + ... + 1064280.

It is an arithmetic number, because the mean of its divisors is an integer number (108759420).

Almost surely, 2^2221100004 is an apocalyptic number.

It is an amenable number.

2221100004 is an abundant number, since it is smaller than the sum of its proper divisors (2999352156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221100004 is a wasteful number, since it uses less digits than its factorization.

2221100004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700 (or 2698 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2221100004 is about 47128.5476542615. The cubic root of 2221100004 is about 1304.7361766119.

Adding to 2221100004 its reverse (4000011222), we get a palindrome (6221111226).

The spelling of 2221100004 in words is "two billion, two hundred twenty-one million, one hundred thousand, four".