2201222101 has 8 divisors (see below), whose sum is σ = 2509991064. Its totient is φ = 1912373760.

The previous prime is 2201222077. The next prime is 2201222113. The reversal of 2201222101 is 1012221022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62252100 + 2138970001 = 7890^2 + 46249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2201222101 - 2⁵ = 2201222069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201222131) 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 7 ways as a sum of consecutive naturals, for example, 4979920 + ... + 4980361.

It is an arithmetic number, because the mean of its divisors is an integer number (313748883).

Almost surely, 2^2201222101 is an apocalyptic number.

It is an amenable number.

2201222101 is a deficient number, since it is larger than the sum of its proper divisors (308768963).

2201222101 is a wasteful number, since it uses less digits than its factorization.

2201222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9960311.

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

The square root of 2201222101 is about 46917.1834299545. The cubic root of 2201222101 is about 1300.8322286521.

Adding to 2201222101 its reverse (1012221022), we get a palindrome (3213443123).

The spelling of 2201222101 in words is "two billion, two hundred one million, two hundred twenty-two thousand, one hundred one".