22151366 has 4 divisors (see below), whose sum is σ = 33227052. Its totient is φ = 11075682.

The previous prime is 22151281. The next prime is 22151411. The reversal of 22151366 is 66315122.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5537840 + ... + 5537843.

It is an arithmetic number, because the mean of its divisors is an integer number (8306763).

Almost surely, 2^22151366 is an apocalyptic number.

22151366 is a deficient number, since it is larger than the sum of its proper divisors (11075686).

22151366 is a wasteful number, since it uses less digits than its factorization.

22151366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11075685.

The product of its digits is 2160, while the sum is 26.

The square root of 22151366 is about 4706.5237702576. The cubic root of 22151366 is about 280.8450913510.

Adding to 22151366 its reverse (66315122), we get a palindrome (88466488).

The spelling of 22151366 in words is "twenty-two million, one hundred fifty-one thousand, three hundred sixty-six".