221013422 has 32 divisors (see below), whose sum is σ = 390355200. Its totient is φ = 93803640.

The previous prime is 221013409. The next prime is 221013451. The reversal of 221013422 is 224310122.

It is a self number, because there is not a number n which added to its sum of digits gives 221013422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71897 + ... + 74907.

It is an arithmetic number, because the mean of its divisors is an integer number (12198600).

Almost surely, 2^221013422 is an apocalyptic number.

221013422 is a deficient number, since it is larger than the sum of its proper divisors (169341778).

221013422 is a wasteful number, since it uses less digits than its factorization.

221013422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141 (or 3127 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 221013422 is about 14866.5201711766. The cubic root of 221013422 is about 604.6065989696.

Adding to 221013422 its reverse (224310122), we get a palindrome (445323544).

The spelling of 221013422 in words is "two hundred twenty-one million, thirteen thousand, four hundred twenty-two".