22151113 has 6 divisors (see below), whose sum is σ = 22523982. Its totient is φ = 21784320.

The previous prime is 22151083. The next prime is 22151117. The reversal of 22151113 is 31115122.

It can be written as a sum of positive squares in 3 ways, for example, as 6215049 + 15936064 = 2493^2 + 3992^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22151113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22151117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 745 + ... + 6697.

It is an arithmetic number, because the mean of its divisors is an integer number (3753997).

Almost surely, 2^22151113 is an apocalyptic number.

It is an amenable number.

22151113 is a deficient number, since it is larger than the sum of its proper divisors (372869).

22151113 is an frugal number, since it uses more digits than its factorization.

22151113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6075 (or 6014 counting only the distinct ones).

The product of its digits is 60, while the sum is 16.

The square root of 22151113 is about 4706.4968925943. The cubic root of 22151113 is about 280.8440221306.

Adding to 22151113 its reverse (31115122), we get a palindrome (53266235).

The spelling of 22151113 in words is "twenty-two million, one hundred fifty-one thousand, one hundred thirteen".