22211020222201 has 4 divisors (see below), whose sum is σ = 22211059022500. Its totient is φ = 22210981421904.

The previous prime is 22211020222187. The next prime is 22211020222249. The reversal of 22211020222201 is 10222202011222.

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 21862394924176 + 348625298025 = 4675724^2 + 590445^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211020222201 - 2²⁷ = 22210886004473 is a prime.

It is a super-2 number, since 2×22211020222201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22211020226201) 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, 18528426 + ... + 19690723.

It is an arithmetic number, because the mean of its divisors is an integer number (5552764755625).

Almost surely, 2^{22211020222201} is an apocalyptic number.

It is an amenable number.

22211020222201 is a deficient number, since it is larger than the sum of its proper divisors (38800299).

22211020222201 is an equidigital number, since it uses as much as digits as its factorization.

22211020222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38800298.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22211020222201 its reverse (10222202011222), we get a palindrome (32433222233423).

The spelling of 22211020222201 in words is "twenty-two trillion, two hundred eleven billion, twenty million, two hundred twenty-two thousand, two hundred one".