221041422 has 48 divisors (see below), whose sum is σ = 566223840. Its totient is φ = 60975936.

The previous prime is 221041397. The next prime is 221041433. The reversal of 221041422 is 224140122.

221041422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221041395 and 221041404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26593 + ... + 33900.

It is an arithmetic number, because the mean of its divisors is an integer number (11796330).

Almost surely, 2^221041422 is an apocalyptic number.

221041422 is an abundant number, since it is smaller than the sum of its proper divisors (345182418).

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

221041422 is a wasteful number, since it uses less digits than its factorization.

221041422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60537 (or 60534 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 221041422 is about 14867.4618546677. The cubic root of 221041422 is about 604.6321302545.

Adding to 221041422 its reverse (224140122), we get a palindrome (445181544).

The spelling of 221041422 in words is "two hundred twenty-one million, forty-one thousand, four hundred twenty-two".