2221120012 has 24 divisors (see below), whose sum is σ = 3914194032. Its totient is φ = 1102795200.

The previous prime is 2221120001. The next prime is 2221120043. The reversal of 2221120012 is 2100211222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2221119974 and 2221120001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808962 + ... + 811702.

It is an arithmetic number, because the mean of its divisors is an integer number (163091418).

Almost surely, 2^2221120012 is an apocalyptic number.

It is an amenable number.

2221120012 is a deficient number, since it is larger than the sum of its proper divisors (1693074020).

2221120012 is a wasteful number, since it uses less digits than its factorization.

2221120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089 (or 4087 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2221120012 is about 47128.7599242755. The cubic root of 2221120012 is about 1304.7400943528.

Adding to 2221120012 its reverse (2100211222), we get a palindrome (4321331234).

The spelling of 2221120012 in words is "two billion, two hundred twenty-one million, one hundred twenty thousand, twelve".