1011022231200 has 144 divisors (see below), whose sum is σ = 3324804698880. Its totient is φ = 266826424320.

The previous prime is 1011022231181. The next prime is 1011022231217. The reversal of 1011022231200 is 21322201101.

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 1011022231200.

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 23 ways as a sum of consecutive naturals, for example, 1938640 + ... + 2404239.

It is an arithmetic number, because the mean of its divisors is an integer number (23088921520).

Almost surely, 2^{1011022231200} is an apocalyptic number.

1011022231200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011022231200 is an abundant number, since it is smaller than the sum of its proper divisors (2313782467680).

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

1011022231200 is a wasteful number, since it uses less digits than its factorization.

1011022231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342999 (or 4342986 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1011022231200 its reverse (21322201101), we get a palindrome (1032344432301).

The spelling of 1011022231200 in words is "one trillion, eleven billion, twenty-two million, two hundred thirty-one thousand, two hundred".