30220223 has 4 divisors (see below), whose sum is σ = 32967528. Its totient is φ = 27472920.

The previous prime is 30220219. The next prime is 30220273. The reversal of 30220223 is 32202203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32202203 = 11 ⋅2927473.

It is a cyclic number.

It is not a de Polignac number, because 30220223 - 2² = 30220219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30220198 and 30220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1373636 + ... + 1373657.

It is an arithmetic number, because the mean of its divisors is an integer number (8241882).

Almost surely, 2^30220223 is an apocalyptic number.

30220223 is a deficient number, since it is larger than the sum of its proper divisors (2747305).

30220223 is a wasteful number, since it uses less digits than its factorization.

30220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747304.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30220223 is about 5497.2923335038. The cubic root of 30220223 is about 311.4817133393.

Adding to 30220223 its reverse (32202203), we get a palindrome (62422426).

The spelling of 30220223 in words is "thirty million, two hundred twenty thousand, two hundred twenty-three".