30220212 has 48 divisors (see below), whose sum is σ = 77414400. Its totient is φ = 9099360.

The previous prime is 30220207. The next prime is 30220219. The reversal of 30220212 is 21202203.

It is a super-2 number, since 2×30220212² = 1826522426649888, 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 (30220219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22989 + ... + 24267.

It is an arithmetic number, because the mean of its divisors is an integer number (1612800).

Almost surely, 2^30220212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30220212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38707200).

30220212 is an abundant number, since it is smaller than the sum of its proper divisors (47194188).

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

30220212 is a wasteful number, since it uses less digits than its factorization.

30220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476 (or 1474 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30220212 is about 5497.2913330112. The cubic root of 30220212 is about 311.4816755468.

Adding to 30220212 its reverse (21202203), we get a palindrome (51422415).

Subtracting from 30220212 its reverse (21202203), we obtain a square (9018009 = 3003²).

The spelling of 30220212 in words is "thirty million, two hundred twenty thousand, two hundred twelve".