2201120202101 has 4 divisors (see below), whose sum is σ = 2201123362092. Its totient is φ = 2201117042112.

The previous prime is 2201120202059. The next prime is 2201120202157. The reversal of 2201120202101 is 1012020211022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1678058569201 + 523061632900 = 1295399^2 + 723230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201120202101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201120207101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25076 + ... + 2098301.

It is an arithmetic number, because the mean of its divisors is an integer number (550280840523).

Almost surely, 2^{2201120202101} is an apocalyptic number.

It is an amenable number.

2201120202101 is a deficient number, since it is larger than the sum of its proper divisors (3159991).

2201120202101 is a wasteful number, since it uses less digits than its factorization.

2201120202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159990.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2201120202101 its reverse (1012020211022), we get a palindrome (3213140413123).

The spelling of 2201120202101 in words is "two trillion, two hundred one billion, one hundred twenty million, two hundred two thousand, one hundred one".