212222130 has 16 divisors (see below), whose sum is σ = 509333184. Its totient is φ = 56592560.

The previous prime is 212222113. The next prime is 212222149. The reversal of 212222130 is 31222212.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3537006 + ... + 3537065.

It is an arithmetic number, because the mean of its divisors is an integer number (31833324).

Almost surely, 2^212222130 is an apocalyptic number.

212222130 is an abundant number, since it is smaller than the sum of its proper divisors (297111054).

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

212222130 is a wasteful number, since it uses less digits than its factorization.

212222130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074081.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 212222130 is about 14567.8457570088. The cubic root of 212222130 is about 596.4813780577.

Adding to 212222130 its reverse (31222212), we get a palindrome (243444342).

The spelling of 212222130 in words is "two hundred twelve million, two hundred twenty-two thousand, one hundred thirty".