3081222 has 12 divisors (see below), whose sum is σ = 6676020. Its totient is φ = 1027068.

The previous prime is 3081217. The next prime is 3081223. The reversal of 3081222 is 2221803.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 171179 = 3081222 / (3 + 0 + 8 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 3081195 and 3081204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85572 + ... + 85607.

It is an arithmetic number, because the mean of its divisors is an integer number (556335).

Almost surely, 2^3081222 is an apocalyptic number.

3081222 is an abundant number, since it is smaller than the sum of its proper divisors (3594798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3081222 is a wasteful number, since it uses less digits than its factorization.

3081222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171187 (or 171184 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3081222 is about 1755.3409925140. The cubic root of 3081222 is about 145.5149663990.

The spelling of 3081222 in words is "three million, eighty-one thousand, two hundred twenty-two".