2221302231212 has 48 divisors (see below), whose sum is σ = 4106755628640. Its totient is φ = 1048370337792.

The previous prime is 2221302231199. The next prime is 2221302231257. The reversal of 2221302231212 is 2121322031222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137986748 + ... + 138002844.

It is an arithmetic number, because the mean of its divisors is an integer number (85557408930).

Almost surely, 2^{2221302231212} is an apocalyptic number.

It is an amenable number.

2221302231212 is a deficient number, since it is larger than the sum of its proper divisors (1885453397428).

2221302231212 is a wasteful number, since it uses less digits than its factorization.

2221302231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22610 (or 22608 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2221302231212 its reverse (2121322031222), we get a palindrome (4342624262434).

The spelling of 2221302231212 in words is "two trillion, two hundred twenty-one billion, three hundred two million, two hundred thirty-one thousand, two hundred twelve".