2111220222 has 16 divisors (see below), whose sum is σ = 4336560912. Its totient is φ = 684720000.

The previous prime is 2111220211. The next prime is 2111220227. The reversal of 2111220222 is 2220221112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111220227) 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, 4754779 + ... + 4755222.

It is an arithmetic number, because the mean of its divisors is an integer number (271035057).

Almost surely, 2^2111220222 is an apocalyptic number.

2111220222 is an abundant number, since it is smaller than the sum of its proper divisors (2225340690).

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

2111220222 is a wasteful number, since it uses less digits than its factorization.

2111220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9510043.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2111220222 is about 45948.0165186703. The cubic root of 2111220222 is about 1282.8558107490.

Adding to 2111220222 its reverse (2220221112), we get a palindrome (4331441334).

The spelling of 2111220222 in words is "two billion, one hundred eleven million, two hundred twenty thousand, two hundred twenty-two".