203122220132 has 24 divisors (see below), whose sum is σ = 385072409400. Its totient is φ = 93748712928.

The previous prime is 203122220117. The next prime is 203122220137. The reversal of 203122220132 is 231022221302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 126583677796 + 76538542336 = 355786^2 + 276656^2 .

It is a super-2 number, since 2×203122220132² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203122220137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11548007 + ... + 11565582.

It is an arithmetic number, because the mean of its divisors is an integer number (16044683725).

Almost surely, 2^203122220132 is an apocalyptic number.

It is an amenable number.

203122220132 is a deficient number, since it is larger than the sum of its proper divisors (181950189268).

203122220132 is a wasteful number, since it uses less digits than its factorization.

203122220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23113632 (or 23113604 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 203122220132 its reverse (231022221302), we get a palindrome (434144441434).

The spelling of 203122220132 in words is "two hundred three billion, one hundred twenty-two million, two hundred twenty thousand, one hundred thirty-two".