22012002120212 has 24 divisors (see below), whose sum is σ = 43287816880896. Its totient is φ = 9717673176288.

The previous prime is 22012002120203. The next prime is 22012002120223. The reversal of 22012002120212 is 21202120021022.

It is a happy number.

It is a congruent number.

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, 9202340828 + ... + 9202343219.

It is an arithmetic number, because the mean of its divisors is an integer number (1803659036704).

Almost surely, 2^{22012002120212} is an apocalyptic number.

It is an amenable number.

22012002120212 is a deficient number, since it is larger than the sum of its proper divisors (21275814760684).

22012002120212 is a wasteful number, since it uses less digits than its factorization.

22012002120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404684087 (or 18404684085 counting only the distinct ones).

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

Adding to 22012002120212 its reverse (21202120021022), we get a palindrome (43214122141234).

The spelling of 22012002120212 in words is "twenty-two trillion, twelve billion, two million, one hundred twenty thousand, two hundred twelve".