22002234212 has 18 divisors (see below), whose sum is σ = 44790262902. Its totient is φ = 9429528864.

The previous prime is 22002234193. The next prime is 22002234227. The reversal of 22002234212 is 21243220022.

It can be written as a sum of positive squares in only one way, i.e., 21935387236 + 66846976 = 148106^2 + 8176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56127953 + ... + 56128344.

It is an arithmetic number, because the mean of its divisors is an integer number (2488347939).

Almost surely, 2^22002234212 is an apocalyptic number.

It is an amenable number.

22002234212 is an abundant number, since it is smaller than the sum of its proper divisors (22788028690).

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

22002234212 is a wasteful number, since it uses less digits than its factorization.

22002234212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112256315 (or 112256306 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22002234212 its reverse (21243220022), we get a palindrome (43245454234).

The spelling of 22002234212 in words is "twenty-two billion, two million, two hundred thirty-four thousand, two hundred twelve".