4091222 has 4 divisors (see below), whose sum is σ = 6136836. Its totient is φ = 2045610.

The previous prime is 4091177. The next prime is 4091239. The reversal of 4091222 is 2221904.

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

It is a junction number, because it is equal to n+sod(n) for n = 4091194 and 4091203.

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, 1022804 + ... + 1022807.

It is an arithmetic number, because the mean of its divisors is an integer number (1534209).

Almost surely, 2^4091222 is an apocalyptic number.

4091222 is a deficient number, since it is larger than the sum of its proper divisors (2045614).

4091222 is a wasteful number, since it uses less digits than its factorization.

4091222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045613.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 4091222 is about 2022.6769391082. The cubic root of 4091222 is about 159.9377622519.

The spelling of 4091222 in words is "four million, ninety-one thousand, two hundred twenty-two".