2120312222 has 24 divisors (see below), whose sum is σ = 3778454304. Its totient is φ = 889369152.

The previous prime is 2120312179. The next prime is 2120312303. The reversal of 2120312222 is 2222130212.

It is a self number, because there is not a number n which added to its sum of digits gives 2120312222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225563 + ... + 234774.

It is an arithmetic number, because the mean of its divisors is an integer number (157435596).

Almost surely, 2^2120312222 is an apocalyptic number.

2120312222 is a deficient number, since it is larger than the sum of its proper divisors (1658142082).

2120312222 is a wasteful number, since it uses less digits than its factorization.

2120312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460400 (or 460393 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2120312222 is about 46046.8481223199. The cubic root of 2120312222 is about 1284.6947191239.

Adding to 2120312222 its reverse (2222130212), we get a palindrome (4342442434).

The spelling of 2120312222 in words is "two billion, one hundred twenty million, three hundred twelve thousand, two hundred twenty-two".