210222122012 has 24 divisors (see below), whose sum is σ = 429024741600. Its totient is φ = 90095194560.

The previous prime is 210222121997. The next prime is 210222122017. The reversal of 210222122012 is 210221222012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210222122017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76610189 + ... + 76612932.

It is an arithmetic number, because the mean of its divisors is an integer number (17876030900).

Almost surely, 2^210222122012 is an apocalyptic number.

It is an amenable number.

210222122012 is an abundant number, since it is smaller than the sum of its proper divisors (218802619588).

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

210222122012 is a wasteful number, since it uses less digits than its factorization.

210222122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153223146 (or 153223130 counting only the distinct ones).

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

Adding to 210222122012 its reverse (210221222012), we get a palindrome (420443344024).

The spelling of 210222122012 in words is "two hundred ten billion, two hundred twenty-two million, one hundred twenty-two thousand, twelve".