203123142222 has 64 divisors (see below), whose sum is σ = 545449572864. Its totient is φ = 48700851840.

The previous prime is 203123142199. The next prime is 203123142283. The reversal of 203123142222 is 222241321302.

It is a super-2 number, since 2×203123142222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203123142192 and 203123142201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16904013 + ... + 16916024.

It is an arithmetic number, because the mean of its divisors is an integer number (8522649576).

Almost surely, 2^203123142222 is an apocalyptic number.

203123142222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

203123142222 is an abundant number, since it is smaller than the sum of its proper divisors (342326430642).

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

203123142222 is a wasteful number, since it uses less digits than its factorization.

203123142222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33820073.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203123142222 its reverse (222241321302), we get a palindrome (425364463524).

The spelling of 203123142222 in words is "two hundred three billion, one hundred twenty-three million, one hundred forty-two thousand, two hundred twenty-two".