22621141 has 2 divisors, whose sum is σ = 22621142. Its totient is φ = 22621140.

The previous prime is 22621127. The next prime is 22621163. The reversal of 22621141 is 14112622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18740241 + 3880900 = 4329^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 22621141 - 2⁹ = 22620629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20621141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11310570 + 11310571.

It is an arithmetic number, because the mean of its divisors is an integer number (11310571).

Almost surely, 2^22621141 is an apocalyptic number.

It is an amenable number.

22621141 is a deficient number, since it is larger than the sum of its proper divisors (1).

22621141 is an equidigital number, since it uses as much as digits as its factorization.

22621141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

The square root of 22621141 is about 4756.1687312374. The cubic root of 22621141 is about 282.8165600650.

Adding to 22621141 its reverse (14112622), we get a palindrome (36733763).

It can be divided in two parts, 2262 and 1141, that added together give a triangular number (3403 = T₈₂).

The spelling of 22621141 in words is "twenty-two million, six hundred twenty-one thousand, one hundred forty-one".