101212435500 has 192 divisors, whose sum is σ = 322111835136. Its totient is φ = 24491520000.

The previous prime is 101212435459. The next prime is 101212435603. The reversal of 101212435500 is 5534212101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9515185 + ... + 9525815.

It is an arithmetic number, because the mean of its divisors is an integer number (1677665808).

Almost surely, 2^101212435500 is an apocalyptic number.

101212435500 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 101212435500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161055917568).

101212435500 is an abundant number, since it is smaller than the sum of its proper divisors (220899399636).

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

101212435500 is a wasteful number, since it uses less digits than its factorization.

101212435500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11241 (or 11229 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 101212435500 its reverse (5534212101), we get a palindrome (106746647601).

The spelling of 101212435500 in words is "one hundred one billion, two hundred twelve million, four hundred thirty-five thousand, five hundred".