22302211212 has 36 divisors (see below), whose sum is σ = 56403361560. Its totient is φ = 7430334912.

The previous prime is 22302211193. The next prime is 22302211219. The reversal of 22302211212 is 21211220322.

22302211212 is a `hidden beast` number, since 2 + 230 + 221 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22302211219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82537 + ... + 226752.

Almost surely, 2^22302211212 is an apocalyptic number.

It is an amenable number.

22302211212 is an abundant number, since it is smaller than the sum of its proper divisors (34101150348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22302211212 is a wasteful number, since it uses less digits than its factorization.

22302211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311302 (or 311297 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22302211212 its reverse (21211220322), we get a palindrome (43513431534).

The spelling of 22302211212 in words is "twenty-two billion, three hundred two million, two hundred eleven thousand, two hundred twelve".