22202246644 has 6 divisors (see below), whose sum is σ = 38853931634. Its totient is φ = 11101123320.

The previous prime is 22202246641. The next prime is 22202246659. The reversal of 22202246644 is 44664220222.

It can be written as a sum of positive squares in only one way, i.e., 20281177744 + 1921068900 = 142412^2 + 43830^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202246641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775280827 + ... + 2775280834.

Almost surely, 2^22202246644 is an apocalyptic number.

It is an amenable number.

22202246644 is a deficient number, since it is larger than the sum of its proper divisors (16651684990).

22202246644 is a wasteful number, since it uses less digits than its factorization.

22202246644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550561665 (or 5550561663 counting only the distinct ones).

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

Adding to 22202246644 its reverse (44664220222), we get a palindrome (66866466866).

The spelling of 22202246644 in words is "twenty-two billion, two hundred two million, two hundred forty-six thousand, six hundred forty-four".