22271031 has 10 divisors (see below), whose sum is σ = 33269192. Its totient is φ = 14847300.

The previous prime is 22271027. The next prime is 22271083. The reversal of 22271031 is 13017222.

It is not a de Polignac number, because 22271031 - 2² = 22271027 is a prime.

It is a super-2 number, since 2×22271031² = 991997643605922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22270995 and 22271013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22271231) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 137395 + ... + 137556.

Almost surely, 2^22271031 is an apocalyptic number.

22271031 is a deficient number, since it is larger than the sum of its proper divisors (10998161).

22271031 is an equidigital number, since it uses as much as digits as its factorization.

22271031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274963 (or 274954 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 22271031 is about 4719.2193210318. The cubic root of 22271031 is about 281.3499058405.

Adding to 22271031 its reverse (13017222), we get a palindrome (35288253).

It can be divided in two parts, 222 and 71031, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 22271031 in words is "twenty-two million, two hundred seventy-one thousand, thirty-one".