2122210201212 has 72 divisors (see below), whose sum is σ = 5648890774800. Its totient is φ = 669925479168.

The previous prime is 2122210201211. The next prime is 2122210201229. The reversal of 2122210201212 is 2121020122212.

It is a happy number.

2122210201212 is a `hidden beast` number, since 21 + 22 + 210 + 201 + 212 = 666.

It is a super-2 number, since 2×2122210201212² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122210201211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1298178 + ... + 2435094.

Almost surely, 2^{2122210201212} is an apocalyptic number.

It is an amenable number.

2122210201212 is an abundant number, since it is smaller than the sum of its proper divisors (3526680573588).

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

2122210201212 is a wasteful number, since it uses less digits than its factorization.

2122210201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139675 (or 1139670 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2122210201212 its reverse (2121020122212), we get a palindrome (4243230323424).

The spelling of 2122210201212 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, two hundred one thousand, two hundred twelve".