203112200122 has 24 divisors (see below), whose sum is σ = 329960197404. Its totient is φ = 93729003264.

The previous prime is 203112200113. The next prime is 203112200149. The reversal of 203112200122 is 221002211302.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2192206041 + 200919994081 = 46821^2 + 448241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 203112200096 and 203112200105.

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 in 11 ways as a sum of consecutive naturals, for example, 2210448 + ... + 2300500.

Almost surely, 2^203112200122 is an apocalyptic number.

203112200122 is a deficient number, since it is larger than the sum of its proper divisors (126847997282).

203112200122 is a wasteful number, since it uses less digits than its factorization.

203112200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96754 (or 96741 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 203112200122 its reverse (221002211302), we get a palindrome (424114411424).

The spelling of 203112200122 in words is "two hundred three billion, one hundred twelve million, two hundred thousand, one hundred twenty-two".