22111210201 has 4 divisors (see below), whose sum is σ = 22113114804. Its totient is φ = 22109305600.

The previous prime is 22111210171. The next prime is 22111210273. The reversal of 22111210201 is 10201211122.

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 8700412176 + 13410798025 = 93276^2 + 115805^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111210201 - 2²³ = 22102821593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111210501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934780 + ... + 958141.

It is an arithmetic number, because the mean of its divisors is an integer number (5528278701).

Almost surely, 2^22111210201 is an apocalyptic number.

It is an amenable number.

22111210201 is a deficient number, since it is larger than the sum of its proper divisors (1904603).

22111210201 is a wasteful number, since it uses less digits than its factorization.

22111210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904602.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22111210201 its reverse (10201211122), we get a palindrome (32312421323).

The spelling of 22111210201 in words is "twenty-two billion, one hundred eleven million, two hundred ten thousand, two hundred one".