2221002012 has 12 divisors (see below), whose sum is σ = 5182338056. Its totient is φ = 740334000.

The previous prime is 2221002011. The next prime is 2221002013. The reversal of 2221002012 is 2102001222.

It is an interprime number because it is at equal distance from previous prime (2221002011) and next prime (2221002013).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 185083501 = 2221002012 / (2 + 2 + 2 + 1 + 0 + 0 + 2 + 0 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221002011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92541739 + ... + 92541762.

Almost surely, 2^2221002012 is an apocalyptic number.

It is an amenable number.

2221002012 is an abundant number, since it is smaller than the sum of its proper divisors (2961336044).

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

2221002012 is a wasteful number, since it uses less digits than its factorization.

2221002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185083508 (or 185083506 counting only the distinct ones).

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

The square root of 2221002012 is about 47127.5080181416. The cubic root of 2221002012 is about 1304.7169885838.

Adding to 2221002012 its reverse (2102001222), we get a palindrome (4323003234).

The spelling of 2221002012 in words is "two billion, two hundred twenty-one million, two thousand, twelve".