13100021200 has 120 divisors (see below), whose sum is σ = 37862169920. Its totient is φ = 4255027200.

The previous prime is 13100021191. The next prime is 13100021203. The reversal of 13100021200 is 212000131.

It is a super-2 number, since 2×13100021200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100021203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69921 + ... + 176320.

Almost surely, 2^13100021200 is an apocalyptic number.

13100021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13100021200 is an abundant number, since it is smaller than the sum of its proper divisors (24762148720).

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

13100021200 is a wasteful number, since it uses less digits than its factorization.

13100021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246285 (or 246274 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 13100021200 its reverse (212000131), we get a palindrome (13312021331).

The spelling of 13100021200 in words is "thirteen billion, one hundred million, twenty-one thousand, two hundred".