22201289 has 4 divisors (see below), whose sum is σ = 24219600. Its totient is φ = 20182980.

The previous prime is 22201259. The next prime is 22201297. The reversal of 22201289 is 98210222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22201289 - 2⁸ = 22201033 is a prime.

It is a super-4 number, since 4×22201289⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009139 + ... + 1009160.

It is an arithmetic number, because the mean of its divisors is an integer number (6054900).

Almost surely, 2^22201289 is an apocalyptic number.

It is an amenable number.

22201289 is a deficient number, since it is larger than the sum of its proper divisors (2018311).

22201289 is a wasteful number, since it uses less digits than its factorization.

22201289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018310.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22201289 is about 4711.8243812774. The cubic root of 22201289 is about 281.0559152163.

It can be divided in two parts, 22201 and 289, that multiplied together give a square (6416089 = 2533²).

The spelling of 22201289 in words is "twenty-two million, two hundred one thousand, two hundred eighty-nine".