22212235 has 16 divisors (see below), whose sum is σ = 28524960. Its totient is φ = 16554240.

The previous prime is 22212233. The next prime is 22212257. The reversal of 22212235 is 53221222.

It is not a de Polignac number, because 22212235 - 2¹ = 22212233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (22212233) 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, 3879 + ... + 7711.

It is an arithmetic number, because the mean of its divisors is an integer number (1782810).

Almost surely, 2^22212235 is an apocalyptic number.

22212235 is a deficient number, since it is larger than the sum of its proper divisors (6312725).

22212235 is a wasteful number, since it uses less digits than its factorization.

22212235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918.

The product of its digits is 480, while the sum is 19.

The square root of 22212235 is about 4712.9857839803. The cubic root of 22212235 is about 281.1020977088.

Adding to 22212235 its reverse (53221222), we get a palindrome (75433457).

The spelling of 22212235 in words is "twenty-two million, two hundred twelve thousand, two hundred thirty-five".