22202111221111 has 4 divisors (see below), whose sum is σ = 22469606537112. Its totient is φ = 21934615905112.

The previous prime is 22202111221097. The next prime is 22202111221133. The reversal of 22202111221111 is 11112211120222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22202111221111 - 2⁵ = 22202111221079 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 (22202111221711) 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, 133747657876 + ... + 133747658041.

It is an arithmetic number, because the mean of its divisors is an integer number (5617401634278).

Almost surely, 2^{22202111221111} is an apocalyptic number.

22202111221111 is a deficient number, since it is larger than the sum of its proper divisors (267495316001).

22202111221111 is an equidigital number, since it uses as much as digits as its factorization.

22202111221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267495316000.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22202111221111 its reverse (11112211120222), we get a palindrome (33314322341333).

The spelling of 22202111221111 in words is "twenty-two trillion, two hundred two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred eleven".