12240222646 has 16 divisors (see below), whose sum is σ = 18627982128. Its totient is φ = 6031264000.

The previous prime is 12240222637. The next prime is 12240222677. The reversal of 12240222646 is 64622204221.

It is a congruent 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, 25375 + ... + 158506.

It is an arithmetic number, because the mean of its divisors is an integer number (1164248883).

Almost surely, 2^12240222646 is an apocalyptic number.

12240222646 is a deficient number, since it is larger than the sum of its proper divisors (6387759482).

12240222646 is a wasteful number, since it uses less digits than its factorization.

12240222646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184367.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 12240222646 its reverse (64622204221), we get a palindrome (76862426867).

The spelling of 12240222646 in words is "twelve billion, two hundred forty million, two hundred twenty-two thousand, six hundred forty-six".