22221402111 has 8 divisors (see below), whose sum is σ = 32920595760. Its totient is φ = 14814268056.

The previous prime is 22221402079. The next prime is 22221402121. The reversal of 22221402111 is 11120412222.

It is not a de Polignac number, because 22221402111 - 2⁵ = 22221402079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221402121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411507420 + ... + 411507473.

It is an arithmetic number, because the mean of its divisors is an integer number (4115074470).

Almost surely, 2^22221402111 is an apocalyptic number.

22221402111 is a deficient number, since it is larger than the sum of its proper divisors (10699193649).

22221402111 is an equidigital number, since it uses as much as digits as its factorization.

22221402111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823014902 (or 823014896 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22221402111 its reverse (11120412222), we get a palindrome (33341814333).

The spelling of 22221402111 in words is "twenty-two billion, two hundred twenty-one million, four hundred two thousand, one hundred eleven".