231222030100 has 18 divisors (see below), whose sum is σ = 501751805534. Its totient is φ = 92488812000.

The previous prime is 231222030073. The next prime is 231222030101. The reversal of 231222030100 is 1030222132.

It can be written as a sum of positive squares in 3 ways, for example, as 54899301636 + 176322728464 = 234306^2 + 419908^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231222030101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1156110051 + ... + 1156110250.

Almost surely, 2^231222030100 is an apocalyptic number.

231222030100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231222030100 is an abundant number, since it is smaller than the sum of its proper divisors (270529775434).

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

231222030100 is a wasteful number, since it uses less digits than its factorization.

231222030100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312220315 (or 2312220308 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 231222030100 its reverse (1030222132), we get a palindrome (232252252232).

The spelling of 231222030100 in words is "two hundred thirty-one billion, two hundred twenty-two million, thirty thousand, one hundred".