223421022 has 48 divisors (see below), whose sum is σ = 542376432. Its totient is φ = 65871360.

The previous prime is 223420957. The next prime is 223421039. The reversal of 223421022 is 220124322.

223421022 is a `hidden beast` number, since 223 + 421 + 0 + 22 = 666.

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 = 223420986 and 223421004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7923 + ... + 22574.

It is an arithmetic number, because the mean of its divisors is an integer number (11299509).

Almost surely, 2^223421022 is an apocalyptic number.

223421022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

223421022 is an abundant number, since it is smaller than the sum of its proper divisors (318955410).

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

223421022 is a wasteful number, since it uses less digits than its factorization.

223421022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30553 (or 30550 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 223421022 is about 14947.2747348806. The cubic root of 223421022 is about 606.7940934411.

Adding to 223421022 its reverse (220124322), we get a palindrome (443545344).

The spelling of 223421022 in words is "two hundred twenty-three million, four hundred twenty-one thousand, twenty-two".