102231133212 has 72 divisors (see below), whose sum is σ = 260034289200. Its totient is φ = 31244528640.

The previous prime is 102231133127. The next prime is 102231133223. The reversal of 102231133212 is 212331132201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133012 + ... + 471332.

It is an arithmetic number, because the mean of its divisors is an integer number (3611587350).

Almost surely, 2^102231133212 is an apocalyptic number.

102231133212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102231133212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130017144600).

102231133212 is an abundant number, since it is smaller than the sum of its proper divisors (157803155988).

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

102231133212 is a wasteful number, since it uses less digits than its factorization.

102231133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338503 (or 338488 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 102231133212 its reverse (212331132201), we get a palindrome (314562265413).

The spelling of 102231133212 in words is "one hundred two billion, two hundred thirty-one million, one hundred thirty-three thousand, two hundred twelve".