2011122201 has 32 divisors (see below), whose sum is σ = 3026491776. Its totient is φ = 1177280000.

The previous prime is 2011122173. The next prime is 2011122209. The reversal of 2011122201 is 1022211102.

It is a cyclic number.

It is not a de Polignac number, because 2011122201 - 2⁶ = 2011122137 is a prime.

It is a super-2 number, since 2×2011122201² = 8089225014710168802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2011122209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129295 + ... + 144011.

It is an arithmetic number, because the mean of its divisors is an integer number (94577868).

Almost surely, 2^2011122201 is an apocalyptic number.

It is an amenable number.

2011122201 is a deficient number, since it is larger than the sum of its proper divisors (1015369575).

2011122201 is a wasteful number, since it uses less digits than its factorization.

2011122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14873.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2011122201 is about 44845.5371358177. The cubic root of 2011122201 is about 1262.2522497350.

Adding to 2011122201 its reverse (1022211102), we get a palindrome (3033333303).

The spelling of 2011122201 in words is "two billion, eleven million, one hundred twenty-two thousand, two hundred one".