2112022201 has 4 divisors (see below), whose sum is σ = 2112124132. Its totient is φ = 2111920272.

The previous prime is 2112022177. The next prime is 2112022229. The reversal of 2112022201 is 1022202112.

It is a happy number.

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 889470976 + 1222551225 = 29824^2 + 34965^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112022201 - 2⁹ = 2112021689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112022291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7566 + ... + 65431.

It is an arithmetic number, because the mean of its divisors is an integer number (528031033).

Almost surely, 2^2112022201 is an apocalyptic number.

It is an amenable number.

2112022201 is a deficient number, since it is larger than the sum of its proper divisors (101931).

2112022201 is an equidigital number, since it uses as much as digits as its factorization.

2112022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101930.

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

The square root of 2112022201 is about 45956.7427152970. The cubic root of 2112022201 is about 1283.0182275930.

Adding to 2112022201 its reverse (1022202112), we get a palindrome (3134224313).

The spelling of 2112022201 in words is "two billion, one hundred twelve million, twenty-two thousand, two hundred one".