2201121108 has 48 divisors (see below), whose sum is σ = 5828040960. Its totient is φ = 718094592.

The previous prime is 2201121103. The next prime is 2201121113. The reversal of 2201121108 is 8011211022.

It is an interprime number because it is at equal distance from previous prime (2201121103) and next prime (2201121113).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201121103) 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, 211741 + ... + 221892.

It is an arithmetic number, because the mean of its divisors is an integer number (121417520).

Almost surely, 2^2201121108 is an apocalyptic number.

It is an amenable number.

2201121108 is an abundant number, since it is smaller than the sum of its proper divisors (3626919852).

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

2201121108 is a wasteful number, since it uses less digits than its factorization.

2201121108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433693 (or 433685 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 2201121108 is about 46916.1071275101. The cubic root of 2201121108 is about 1300.8123341037.

The spelling of 2201121108 in words is "two billion, two hundred one million, one hundred twenty-one thousand, one hundred eight".