203112031222 has 4 divisors (see below), whose sum is σ = 304668046836. Its totient is φ = 101556015610.

The previous prime is 203112031219. The next prime is 203112031237. The reversal of 203112031222 is 222130211302.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 203112031222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50778007804 + ... + 50778007807.

It is an arithmetic number, because the mean of its divisors is an integer number (76167011709).

Almost surely, 2^203112031222 is an apocalyptic number.

203112031222 is a deficient number, since it is larger than the sum of its proper divisors (101556015614).

203112031222 is a wasteful number, since it uses less digits than its factorization.

203112031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101556015613.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 203112031222 its reverse (222130211302), we get a palindrome (425242242524).

The spelling of 203112031222 in words is "two hundred three billion, one hundred twelve million, thirty-one thousand, two hundred twenty-two".