7022281 has 8 divisors (see below), whose sum is σ = 8043840. Its totient is φ = 6005328.

The previous prime is 7022273. The next prime is 7022293. The reversal of 7022281 is 1822207.

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

It is not a de Polignac number, because 7022281 - 2³ = 7022273 is a prime.

It is a super-2 number, since 2×7022281² = 98624860885922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7052281) 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, 3255 + ... + 4963.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^7022281 is an apocalyptic number.

It is an amenable number.

7022281 is a deficient number, since it is larger than the sum of its proper divisors (1021559).

7022281 is a wasteful number, since it uses less digits than its factorization.

7022281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7022281 is about 2649.9586789231. The cubic root of 7022281 is about 191.4958653130.

Adding to 7022281 its reverse (1822207), we get a palindrome (8844488).

The spelling of 7022281 in words is "seven million, twenty-two thousand, two hundred eighty-one".