30221112 has 16 divisors (see below), whose sum is σ = 75552840. Its totient is φ = 10073696.

The previous prime is 30221101. The next prime is 30221117. The reversal of 30221112 is 21112203.

It is a super-2 number, since 2×30221112² = 1826631221033088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221117) 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, 629583 + ... + 629630.

Almost surely, 2^30221112 is an apocalyptic number.

It is an amenable number.

30221112 is an abundant number, since it is smaller than the sum of its proper divisors (45331728).

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

30221112 is a wasteful number, since it uses less digits than its factorization.

30221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259222 (or 1259218 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 30221112 is about 5497.3731908976. The cubic root of 30221112 is about 311.4847676354.

Adding to 30221112 its reverse (21112203), we get a palindrome (51333315).

The spelling of 30221112 in words is "thirty million, two hundred twenty-one thousand, one hundred twelve".