22212132 has 24 divisors (see below), whose sum is σ = 54877536. Its totient is φ = 6968448.

The previous prime is 22212131. The next prime is 22212133. The reversal of 22212132 is 23121222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22212131) and next prime (22212133).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22212131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54238 + ... + 54645.

It is an arithmetic number, because the mean of its divisors is an integer number (2286564).

Almost surely, 2^22212132 is an apocalyptic number.

It is an amenable number.

22212132 is an abundant number, since it is smaller than the sum of its proper divisors (32665404).

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

22212132 is a wasteful number, since it uses less digits than its factorization.

22212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108907 (or 108905 counting only the distinct ones).

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

The square root of 22212132 is about 4712.9748567121. The cubic root of 22212132 is about 281.1016632101.

Adding to 22212132 its reverse (23121222), we get a palindrome (45333354).

The spelling of 22212132 in words is "twenty-two million, two hundred twelve thousand, one hundred thirty-two".