2211220101 has 16 divisors (see below), whose sum is σ = 3051878400. Its totient is φ = 1422418368.

The previous prime is 2211220097. The next prime is 2211220129. The reversal of 2211220101 is 1010221122.

It is not a de Polignac number, because 2211220101 - 2² = 2211220097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148540 + ... + 162746.

It is an arithmetic number, because the mean of its divisors is an integer number (190742400).

Almost surely, 2^2211220101 is an apocalyptic number.

It is an amenable number.

2211220101 is a deficient number, since it is larger than the sum of its proper divisors (840658299).

2211220101 is a wasteful number, since it uses less digits than its factorization.

2211220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16028.

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

The square root of 2211220101 is about 47023.6121645286. The cubic root of 2211220101 is about 1302.7987240510.

Adding to 2211220101 its reverse (1010221122), we get a palindrome (3221441223).

The spelling of 2211220101 in words is "two billion, two hundred eleven million, two hundred twenty thousand, one hundred one".