203412222 has 40 divisors (see below), whose sum is σ = 490860216. Its totient is φ = 62587728.

The previous prime is 203412221. The next prime is 203412239. The reversal of 203412222 is 222214302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203412195 and 203412204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203412221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46188 + ... + 50399.

Almost surely, 2^203412222 is an apocalyptic number.

203412222 is an abundant number, since it is smaller than the sum of its proper divisors (287447994).

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

203412222 is a wasteful number, since it uses less digits than its factorization.

203412222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96614 (or 96605 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 203412222 is about 14262.2656685395. The cubic root of 203412222 is about 588.1106101786.

Adding to 203412222 its reverse (222214302), we get a palindrome (425626524).

The spelling of 203412222 in words is "two hundred three million, four hundred twelve thousand, two hundred twenty-two".