2201121002 has 16 divisors (see below), whose sum is σ = 3498049800. Its totient is φ = 1035184128.

The previous prime is 2201120927. The next prime is 2201121007. The reversal of 2201121002 is 2001211022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2022390841 + 178730161 = 44971^2 + 13369^2 .

It is not an unprimeable number, because it can be changed into a prime (2201121007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38624 + ... + 76772.

Almost surely, 2^2201121002 is an apocalyptic number.

2201121002 is a deficient number, since it is larger than the sum of its proper divisors (1296928798).

2201121002 is a wasteful number, since it uses less digits than its factorization.

2201121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39865.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2201121002 is about 46916.1059978340. The cubic root of 2201121002 is about 1300.8123132225.

Adding to 2201121002 its reverse (2001211022), we get a palindrome (4202332024).

The spelling of 2201121002 in words is "two billion, two hundred one million, one hundred twenty-one thousand, two".