2221044012 has 36 divisors (see below), whose sum is σ = 6124698216. Its totient is φ = 673043520.

The previous prime is 2221043983. The next prime is 2221044043. The reversal of 2221044012 is 2104401222.

2221044012 is a `hidden beast` number, since 2 + 2 + 210 + 440 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2221044012² = 9866073006482112288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2803953 + ... + 2804744.

It is an arithmetic number, because the mean of its divisors is an integer number (170130506).

Almost surely, 2^2221044012 is an apocalyptic number.

2221044012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221044012 is an abundant number, since it is smaller than the sum of its proper divisors (3903654204).

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

2221044012 is a wasteful number, since it uses less digits than its factorization.

2221044012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608718 (or 5608713 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2221044012 is about 47127.9536156621. The cubic root of 2221044012 is about 1304.7252127649.

Adding to 2221044012 its reverse (2104401222), we get a palindrome (4325445234).

The spelling of 2221044012 in words is "two billion, two hundred twenty-one million, forty-four thousand, twelve".