16022231 has 4 divisors (see below), whose sum is σ = 16034712. Its totient is φ = 16009752.

The previous prime is 16022219. The next prime is 16022243. The reversal of 16022231 is 13222061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13222061 = 37 ⋅357353.

It is an interprime number because it is at equal distance from previous prime (16022219) and next prime (16022243).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16022231 is a prime.

It is a super-2 number, since 2×16022231² = 513423772434722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16022261) 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, 4061 + ... + 6966.

It is an arithmetic number, because the mean of its divisors is an integer number (4008678).

Almost surely, 2^16022231 is an apocalyptic number.

16022231 is a deficient number, since it is larger than the sum of its proper divisors (12481).

16022231 is a wasteful number, since it uses less digits than its factorization.

16022231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12480.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 16022231 is about 4002.7779104017. Note that the first 3 decimals coincide. The cubic root of 16022231 is about 252.1008614059.

Adding to 16022231 its reverse (13222061), we get a palindrome (29244292).

The spelling of 16022231 in words is "sixteen million, twenty-two thousand, two hundred thirty-one".