221222303012 has 24 divisors (see below), whose sum is σ = 387723525504. Its totient is φ = 110444255712.

The previous prime is 221222302979. The next prime is 221222303039. The reversal of 221222303012 is 210303222122.

It is a happy number.

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, 10027658 + ... + 10049694.

It is an arithmetic number, because the mean of its divisors is an integer number (16155146896).

Almost surely, 2^221222303012 is an apocalyptic number.

It is an amenable number.

221222303012 is a deficient number, since it is larger than the sum of its proper divisors (166501222492).

221222303012 is a wasteful number, since it uses less digits than its factorization.

221222303012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25715 (or 25713 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221222303012 its reverse (210303222122), we get a palindrome (431525525134).

The spelling of 221222303012 in words is "two hundred twenty-one billion, two hundred twenty-two million, three hundred three thousand, twelve".