2215622201 has 4 divisors (see below), whose sum is σ = 2386054692. Its totient is φ = 2045189712.

The previous prime is 2215622183. The next prime is 2215622207. The reversal of 2215622201 is 1022265122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 921061801 + 1294560400 = 30349^2 + 35980^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215622201 - 2¹⁴ = 2215605817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2215622207) 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, 85216226 + ... + 85216251.

It is an arithmetic number, because the mean of its divisors is an integer number (596513673).

Almost surely, 2^2215622201 is an apocalyptic number.

It is an amenable number.

2215622201 is a deficient number, since it is larger than the sum of its proper divisors (170432491).

2215622201 is a wasteful number, since it uses less digits than its factorization.

2215622201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170432490.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2215622201 is about 47070.3962273529. The cubic root of 2215622201 is about 1303.6626888039.

Adding to 2215622201 its reverse (1022265122), we get a palindrome (3237887323).

The spelling of 2215622201 in words is "two billion, two hundred fifteen million, six hundred twenty-two thousand, two hundred one".