1012111212300 has 144 divisors (see below), whose sum is σ = 2951769408000. Its totient is φ = 267744787200.

The previous prime is 1012111212289. The next prime is 1012111212319. The reversal of 1012111212300 is 32121112101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1012111212300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36237741 + ... + 36265659.

Almost surely, 2^{1012111212300} is an apocalyptic number.

1012111212300 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 1012111212300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1475884704000).

1012111212300 is an abundant number, since it is smaller than the sum of its proper divisors (1939658195700).

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

1012111212300 is a wasteful number, since it uses less digits than its factorization.

1012111212300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28896 (or 28889 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1012111212300 its reverse (32121112101), we get a palindrome (1044232324401).

The spelling of 1012111212300 in words is "one trillion, twelve billion, one hundred eleven million, two hundred twelve thousand, three hundred".