212223030 has 16 divisors (see below), whose sum is σ = 509335344. Its totient is φ = 56592800.

The previous prime is 212223007. The next prime is 212223049. The reversal of 212223030 is 30322212.

It is a super-2 number, since 2×212223030² = 90077228924761800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 3537021 + ... + 3537080.

It is an arithmetic number, because the mean of its divisors is an integer number (31833459).

Almost surely, 2^212223030 is an apocalyptic number.

212223030 is an abundant number, since it is smaller than the sum of its proper divisors (297112314).

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

212223030 is a wasteful number, since it uses less digits than its factorization.

212223030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074111.

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

The square root of 212223030 is about 14567.8766469242. The cubic root of 212223030 is about 596.4822212505.

Adding to 212223030 its reverse (30322212), we get a palindrome (242545242).

It can be divided in two parts, 2122 and 23030, that added together give a palindrome (25152).

The spelling of 212223030 in words is "two hundred twelve million, two hundred twenty-three thousand, thirty".