212222022 has 8 divisors (see below), whose sum is σ = 424444056. Its totient is φ = 70740672.

The previous prime is 212222011. The next prime is 212222051. The reversal of 212222022 is 220222212.

It is a sphenic number, since it is the product of 3 distinct primes.

212222022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 212221992 and 212222010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17685163 + ... + 17685174.

It is an arithmetic number, because the mean of its divisors is an integer number (53055507).

Almost surely, 2^212222022 is an apocalyptic number.

212222022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212222022 is a wasteful number, since it uses less digits than its factorization.

212222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35370342.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 212222022 is about 14567.8420502146. The cubic root of 212222022 is about 596.4812768744.

Adding to 212222022 its reverse (220222212), we get a palindrome (432444234).

The spelling of 212222022 in words is "two hundred twelve million, two hundred twenty-two thousand, twenty-two".