22222101211201 has 4 divisors (see below), whose sum is σ = 22222115913172. Its totient is φ = 22222086509232.

The previous prime is 22222101211151. The next prime is 22222101211223. The reversal of 22222101211201 is 10211210122222.

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 11591573529600 + 10630527681601 = 3404640^2 + 3260449^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222101211201 - 2²¹ = 22222099114049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22222101215201) 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, 4785210 + ... + 8206243.

It is an arithmetic number, because the mean of its divisors is an integer number (5555528978293).

Almost surely, 2^{22222101211201} is an apocalyptic number.

It is an amenable number.

22222101211201 is a deficient number, since it is larger than the sum of its proper divisors (14701971).

22222101211201 is a wasteful number, since it uses less digits than its factorization.

22222101211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14701970.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22222101211201 its reverse (10211210122222), we get a palindrome (32433311333423).

The spelling of 22222101211201 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred one million, two hundred eleven thousand, two hundred one".