22202211212 has 6 divisors (see below), whose sum is σ = 38853869628. Its totient is φ = 11101105604.

The previous prime is 22202211211. The next prime is 22202211217. The reversal of 22202211212 is 21211220222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22202211211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775276398 + ... + 2775276405.

It is an arithmetic number, because the mean of its divisors is an integer number (6475644938).

Almost surely, 2^22202211212 is an apocalyptic number.

It is an amenable number.

22202211212 is a deficient number, since it is larger than the sum of its proper divisors (16651658416).

22202211212 is a wasteful number, since it uses less digits than its factorization.

22202211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550552807 (or 5550552805 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22202211212 its reverse (21211220222), we get a palindrome (43413431434).

The spelling of 22202211212 in words is "twenty-two billion, two hundred two million, two hundred eleven thousand, two hundred twelve".