2202200221 has 8 divisors (see below), whose sum is σ = 2386708184. Its totient is φ = 2019850560.

The previous prime is 2202200197. The next prime is 2202200233. The reversal of 2202200221 is 1220022022.

It can be written as a sum of positive squares in 4 ways, for example, as 193905625 + 2008294596 = 13925^2 + 44814^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2202200221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202203221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537450 + ... + 541531.

It is an arithmetic number, because the mean of its divisors is an integer number (298338523).

Almost surely, 2^2202200221 is an apocalyptic number.

It is an amenable number.

2202200221 is a deficient number, since it is larger than the sum of its proper divisors (184507963).

2202200221 is a wasteful number, since it uses less digits than its factorization.

2202200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079151.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2202200221 is about 46927.6061716342. The cubic root of 2202200221 is about 1301.0248764248.

Adding to 2202200221 its reverse (1220022022), we get a palindrome (3422222243).

The spelling of 2202200221 in words is "two billion, two hundred two million, two hundred thousand, two hundred twenty-one".