220222242646 has 32 divisors (see below), whose sum is σ = 378158637312. Its totient is φ = 94222401120.

The previous prime is 220222242547. The next prime is 220222242649. The reversal of 220222242646 is 646242222022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220222242649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25375660 + ... + 25384336.

It is an arithmetic number, because the mean of its divisors is an integer number (11817457416).

Almost surely, 2^220222242646 is an apocalyptic number.

220222242646 is a deficient number, since it is larger than the sum of its proper divisors (157936394666).

220222242646 is a wasteful number, since it uses less digits than its factorization.

220222242646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11524.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 220222242646 its reverse (646242222022), we get a palindrome (866464464668).

The spelling of 220222242646 in words is "two hundred twenty billion, two hundred twenty-two million, two hundred forty-two thousand, six hundred forty-six".