1012200021194 has 16 divisors (see below), whose sum is σ = 1616167987200. Its totient is φ = 474075939744.

The previous prime is 1012200021193. The next prime is 1012200021229. The reversal of 1012200021194 is 4911200022101.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1012200021193) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 149641802 + ... + 149648565.

It is an arithmetic number, because the mean of its divisors is an integer number (101010499200).

Almost surely, 2^{1012200021194} is an apocalyptic number.

1012200021194 is a deficient number, since it is larger than the sum of its proper divisors (603967966006).

1012200021194 is a wasteful number, since it uses less digits than its factorization.

1012200021194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299290477.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 1012200021194 its reverse (4911200022101), we get a palindrome (5923400043295).

The spelling of 1012200021194 in words is "one trillion, twelve billion, two hundred million, twenty-one thousand, one hundred ninety-four".