22001113 has 2 divisors, whose sum is σ = 22001114. Its totient is φ = 22001112.

The previous prime is 22001101. The next prime is 22001129. The reversal of 22001113 is 31110022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13162384 + 8838729 = 3628^2 + 2973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22001113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22001113.

It is not a weakly prime, because it can be changed into another prime (22001143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000556 + 11000557.

It is an arithmetic number, because the mean of its divisors is an integer number (11000557).

Almost surely, 2^22001113 is an apocalyptic number.

It is an amenable number.

22001113 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001113 is an equidigital number, since it uses as much as digits as its factorization.

22001113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 22001113 is about 4690.5344045215. The cubic root of 22001113 is about 280.2086582431.

Adding to 22001113 its reverse (31110022), we get a palindrome (53111135).

The spelling of 22001113 in words is "twenty-two million, one thousand, one hundred thirteen".