22387201 has 4 divisors (see below), whose sum is σ = 22548400. Its totient is φ = 22226004.

The previous prime is 22387199. The next prime is 22387207. The reversal of 22387201 is 10278322.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10278322 = 2 ⋅5139161.

It is a cyclic number.

It is not a de Polignac number, because 22387201 - 2¹ = 22387199 is a prime.

It is a super-2 number, since 2×22387201² = 1002373537228802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22387207) 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, 80391 + ... + 80668.

It is an arithmetic number, because the mean of its divisors is an integer number (5637100).

Almost surely, 2^22387201 is an apocalyptic number.

It is an amenable number.

22387201 is a deficient number, since it is larger than the sum of its proper divisors (161199).

22387201 is a wasteful number, since it uses less digits than its factorization.

22387201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161198.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 22387201 is about 4731.5114921133. The cubic root of 22387201 is about 281.8382495438.

The spelling of 22387201 in words is "twenty-two million, three hundred eighty-seven thousand, two hundred one".