102112211280 has 160 divisors (see below), whose sum is σ = 337339551744. Its totient is φ = 25491778048.

The previous prime is 102112211191. The next prime is 102112211281. The reversal of 102112211280 is 82112211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112211281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62647 + ... + 456233.

Almost surely, 2^102112211280 is an apocalyptic number.

102112211280 is a gapful number since it is divisible by the number (10) 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 102112211280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168669775872).

102112211280 is an abundant number, since it is smaller than the sum of its proper divisors (235227340464).

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

102112211280 is a wasteful number, since it uses less digits than its factorization.

102112211280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393673 (or 393667 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 102112211280 its reverse (82112211201), we get a palindrome (184224422481).

The spelling of 102112211280 in words is "one hundred two billion, one hundred twelve million, two hundred eleven thousand, two hundred eighty".