2203122222 has 36 divisors (see below), whose sum is σ = 5552769456. Its totient is φ = 629463240.

The previous prime is 2203122221. The next prime is 2203122247. The reversal of 2203122222 is 2222213022.

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 = 2203122195 and 2203122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203122221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1248054 + ... + 1249817.

It is an arithmetic number, because the mean of its divisors is an integer number (154243596).

Almost surely, 2^2203122222 is an apocalyptic number.

2203122222 is an abundant number, since it is smaller than the sum of its proper divisors (3349647234).

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

2203122222 is a wasteful number, since it uses less digits than its factorization.

2203122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497893 (or 2497883 counting only the distinct ones).

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

The square root of 2203122222 is about 46937.4287962176. The cubic root of 2203122222 is about 1301.2064189353.

Adding to 2203122222 its reverse (2222213022), we get a palindrome (4425335244).

It can be divided in two parts, 22031 and 22222, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 2203122222 in words is "two billion, two hundred three million, one hundred twenty-two thousand, two hundred twenty-two".