2221200101 has 4 divisors (see below), whose sum is σ = 2247961632. Its totient is φ = 2194438572.

The previous prime is 2221200089. The next prime is 2221200209. The reversal of 2221200101 is 1010021222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2221200101 - 2¹⁴ = 2221183717 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 (2221200001) 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, 13380641 + ... + 13380806.

It is an arithmetic number, because the mean of its divisors is an integer number (561990408).

Almost surely, 2^2221200101 is an apocalyptic number.

It is an amenable number.

2221200101 is a deficient number, since it is larger than the sum of its proper divisors (26761531).

2221200101 is an equidigital number, since it uses as much as digits as its factorization.

2221200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26761530.

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

The square root of 2221200101 is about 47129.6095994864. The cubic root of 2221200101 is about 1304.7557762420.

Adding to 2221200101 its reverse (1010021222), we get a palindrome (3231221323).

The spelling of 2221200101 in words is "two billion, two hundred twenty-one million, two hundred thousand, one hundred one".