2212222100120 has 16 divisors (see below), whose sum is σ = 4977499725360. Its totient is φ = 884888840032.

The previous prime is 2212222100119. The next prime is 2212222100129. The reversal of 2212222100120 is 210012222122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212222100129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27652776212 + ... + 27652776291.

It is an arithmetic number, because the mean of its divisors is an integer number (311093732835).

Almost surely, 2^{2212222100120} is an apocalyptic number.

2212222100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212222100120 is an abundant number, since it is smaller than the sum of its proper divisors (2765277625240).

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

2212222100120 is a wasteful number, since it uses less digits than its factorization.

2212222100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55305552514 (or 55305552510 counting only the distinct ones).

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

Adding to 2212222100120 its reverse (210012222122), we get a palindrome (2422234322242).

The spelling of 2212222100120 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred thousand, one hundred twenty".