221303022 has 16 divisors (see below), whose sum is σ = 442796112. Its totient is φ = 73736000.

The previous prime is 221303009. The next prime is 221303063. The reversal of 221303022 is 220303122.

221303022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221302992 and 221303010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10522 + ... + 23522.

It is an arithmetic number, because the mean of its divisors is an integer number (27674757).

Almost surely, 2^221303022 is an apocalyptic number.

221303022 is an abundant number, since it is smaller than the sum of its proper divisors (221493090).

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

221303022 is a wasteful number, since it uses less digits than its factorization.

221303022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15843.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 221303022 is about 14876.2569889069. The cubic root of 221303022 is about 604.8705612941.

Adding to 221303022 its reverse (220303122), we get a palindrome (441606144).

It can be divided in two parts, 22130 and 3022, that added together give a palindrome (25152).

The spelling of 221303022 in words is "two hundred twenty-one million, three hundred three thousand, twenty-two".