79000001222201 has 4 divisors (see below), whose sum is σ = 79040870340132. Its totient is φ = 78959132104272.

The previous prime is 79000001222183. The next prime is 79000001222239. The reversal of 79000001222201 is 10222210000097.

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 52085435416576 + 26914565805625 = 7217024^2 + 5187925^2 .

It is a cyclic number.

It is not a de Polignac number, because 79000001222201 - 2³⁸ = 78725123315257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79000001222101) 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, 20434556066 + ... + 20434559931.

It is an arithmetic number, because the mean of its divisors is an integer number (19760217585033).

Almost surely, 2^{79000001222201} is an apocalyptic number.

It is an amenable number.

79000001222201 is a deficient number, since it is larger than the sum of its proper divisors (40869117931).

79000001222201 is a wasteful number, since it uses less digits than its factorization.

79000001222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40869117930.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 79000001222201 its reverse (10222210000097), we get a palindrome (89222211222298).

The spelling of 79000001222201 in words is "seventy-nine trillion, one million, two hundred twenty-two thousand, two hundred one".