22012012002212 has 24 divisors (see below), whose sum is σ = 39867274607160. Its totient is φ = 10621703877120.

The previous prime is 22012012002143. The next prime is 22012012002229. The reversal of 22012012002212 is 21220021021022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6501143470756 + 15510868531456 = 2549734^2 + 3938384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42461573 + ... + 42976844.

It is an arithmetic number, because the mean of its divisors is an integer number (1661136441965).

Almost surely, 2^{22012012002212} is an apocalyptic number.

It is an amenable number.

22012012002212 is a deficient number, since it is larger than the sum of its proper divisors (17855262604948).

22012012002212 is a wasteful number, since it uses less digits than its factorization.

22012012002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85440671 (or 85440669 counting only the distinct ones).

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

Adding to 22012012002212 its reverse (21220021021022), we get a palindrome (43232033023234).

The spelling of 22012012002212 in words is "twenty-two trillion, twelve billion, twelve million, two thousand, two hundred twelve".