2312222201 has 4 divisors (see below), whose sum is σ = 2312775504. Its totient is φ = 2311668900.

The previous prime is 2312222197. The next prime is 2312222243. The reversal of 2312222201 is 1022222132.

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 2312222201 - 2² = 2312222197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2312222201.

It is not an unprimeable number, because it can be changed into a prime (2312222261) 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, 270335 + ... + 278756.

It is an arithmetic number, because the mean of its divisors is an integer number (578193876).

Almost surely, 2^2312222201 is an apocalyptic number.

It is an amenable number.

2312222201 is a deficient number, since it is larger than the sum of its proper divisors (553303).

2312222201 is an equidigital number, since it uses as much as digits as its factorization.

2312222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553302.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2312222201 is about 48085.5716509641. The cubic root of 2312222201 is about 1322.3401633343.

Adding to 2312222201 its reverse (1022222132), we get a palindrome (3334444333).

The spelling of 2312222201 in words is "two billion, three hundred twelve million, two hundred twenty-two thousand, two hundred one".