2221442512 has 20 divisors (see below), whose sum is σ = 4376996640. Its totient is φ = 1091895008.

The previous prime is 2221442507. The next prime is 2221442521. The reversal of 2221442512 is 2152441222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175668 + ... + 1177555.

It is an arithmetic number, because the mean of its divisors is an integer number (218849832).

Almost surely, 2^2221442512 is an apocalyptic number.

It is an amenable number.

2221442512 is a deficient number, since it is larger than the sum of its proper divisors (2155554128).

2221442512 is a wasteful number, since it uses less digits than its factorization.

2221442512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353290 (or 2353284 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 2221442512 is about 47132.1812777639. The cubic root of 2221442512 is about 1304.8032394199.

Adding to 2221442512 its reverse (2152441222), we get a palindrome (4373883734).

The spelling of 2221442512 in words is "two billion, two hundred twenty-one million, four hundred forty-two thousand, five hundred twelve".