22152071 has 8 divisors (see below), whose sum is σ = 23786784. Its totient is φ = 20554240.

The previous prime is 22152061. The next prime is 22152101. The reversal of 22152071 is 17025122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22152071 - 2⁶ = 22152007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22152061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7970 + ... + 10383.

It is an arithmetic number, because the mean of its divisors is an integer number (2973348).

Almost surely, 2^22152071 is an apocalyptic number.

22152071 is a deficient number, since it is larger than the sum of its proper divisors (1634713).

22152071 is a wasteful number, since it uses less digits than its factorization.

22152071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18441.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 22152071 is about 4706.5986657033. The cubic root of 22152071 is about 280.8480707563.

Adding to 22152071 its reverse (17025122), we get a palindrome (39177193).

The spelling of 22152071 in words is "twenty-two million, one hundred fifty-two thousand, seventy-one".