2111121222 has 16 divisors (see below), whose sum is σ = 4825420032. Its totient is φ = 603177480.

The previous prime is 2111121209. The next prime is 2111121239. The reversal of 2111121222 is 2221211112.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25132354 + ... + 25132437.

It is an arithmetic number, because the mean of its divisors is an integer number (301588752).

Almost surely, 2^2111121222 is an apocalyptic number.

2111121222 is an abundant number, since it is smaller than the sum of its proper divisors (2714298810).

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

2111121222 is a wasteful number, since it uses less digits than its factorization.

2111121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50264803.

The product of its digits is 32, while the sum is 15.

The square root of 2111121222 is about 45946.9392016487. The cubic root of 2111121222 is about 1282.8357584101.

Adding to 2111121222 its reverse (2221211112), we get a palindrome (4332332334).

The spelling of 2111121222 in words is "two billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".