5212513212100 has 144 divisors (see below), whose sum is σ = 11859240960000. Its totient is φ = 1985960471040.

The previous prime is 5212513212041. The next prime is 5212513212157. The reversal of 5212513212100 is 12123152125.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293010006 + ... + 293027794.

It is an arithmetic number, because the mean of its divisors is an integer number (82355840000).

Almost surely, 2^{5212513212100} is an apocalyptic number.

5212513212100 is a gapful number since it is divisible by the number (50) 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 5212513212100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5929620480000).

5212513212100 is an abundant number, since it is smaller than the sum of its proper divisors (6646727747900).

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

5212513212100 is a wasteful number, since it uses less digits than its factorization.

5212513212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19190 (or 19183 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 5212513212100 its reverse (12123152125), we get a palindrome (5224636364225).

The spelling of 5212513212100 in words is "five trillion, two hundred twelve billion, five hundred thirteen million, two hundred twelve thousand, one hundred".