2011220122 has 16 divisors (see below), whose sum is σ = 3304440360. Its totient is φ = 913819648.

The previous prime is 2011220117. The next prime is 2011220147. The reversal of 2011220122 is 2210221102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1685020401 + 326199721 = 41049^2 + 18061^2 .

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, 1018903 + ... + 1020874.

Almost surely, 2^2011220122 is an apocalyptic number.

2011220122 is a deficient number, since it is larger than the sum of its proper divisors (1293220238).

2011220122 is a wasteful number, since it uses less digits than its factorization.

2011220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039825.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2011220122 is about 44846.6288811099. The cubic root of 2011220122 is about 1262.2727356436.

Adding to 2011220122 its reverse (2210221102), we get a palindrome (4221441224).

The spelling of 2011220122 in words is "two billion, eleven million, two hundred twenty thousand, one hundred twenty-two".