22213200197 has 4 divisors (see below), whose sum is σ = 22213559916. Its totient is φ = 22212840480.

The previous prime is 22213200179. The next prime is 22213200223. The reversal of 22213200197 is 79100231222.

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 5311640161 + 16901560036 = 72881^2 + 130006^2 .

It is a cyclic number.

It is not a de Polignac number, because 22213200197 - 2³⁴ = 5033331013 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 (22213200137) 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, 61088 + ... + 219449.

It is an arithmetic number, because the mean of its divisors is an integer number (5553389979).

Almost surely, 2^22213200197 is an apocalyptic number.

It is an amenable number.

22213200197 is a deficient number, since it is larger than the sum of its proper divisors (359719).

22213200197 is an equidigital number, since it uses as much as digits as its factorization.

22213200197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359718.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 22213200197 in words is "twenty-two billion, two hundred thirteen million, two hundred thousand, one hundred ninety-seven".