22111889401 has 12 divisors (see below), whose sum is σ = 25834330020. Its totient is φ = 18870274080.

The previous prime is 22111889389. The next prime is 22111889417. The reversal of 22111889401 is 10498811122.

It can be written as a sum of positive squares in 2 ways, for example, as 17982541801 + 4129347600 = 134099^2 + 64260^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22111889401 is a prime.

It is a super-2 number, since 2×22111889401² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111889491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 974070 + ... + 996511.

It is an arithmetic number, because the mean of its divisors is an integer number (2152860835).

Almost surely, 2^22111889401 is an apocalyptic number.

It is an amenable number.

22111889401 is a deficient number, since it is larger than the sum of its proper divisors (3722440619).

22111889401 is a wasteful number, since it uses less digits than its factorization.

22111889401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970824 (or 1970817 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 37.

The spelling of 22111889401 in words is "twenty-two billion, one hundred eleven million, eight hundred eighty-nine thousand, four hundred one".