42211222 has 16 divisors (see below), whose sum is σ = 65146032. Its totient is φ = 20500480.

The previous prime is 42211219. The next prime is 42211259. The reversal of 42211222 is 22211224.

It is a junction number, because it is equal to n+sod(n) for n = 42211196 and 42211205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20073 + ... + 22075.

It is an arithmetic number, because the mean of its divisors is an integer number (4071627).

Almost surely, 2^42211222 is an apocalyptic number.

42211222 is a deficient number, since it is larger than the sum of its proper divisors (22934810).

42211222 is a wasteful number, since it uses less digits than its factorization.

42211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303.

The product of its digits is 128, while the sum is 16.

The square root of 42211222 is about 6497.0163921603. The cubic root of 42211222 is about 348.1843993440.

Adding to 42211222 its reverse (22211224), we get a palindrome (64422446).

The spelling of 42211222 in words is "forty-two million, two hundred eleven thousand, two hundred twenty-two".