1200022011205 has 16 divisors (see below), whose sum is σ = 1447651759104. Its totient is φ = 954934643520.

The previous prime is 1200022011101. The next prime is 1200022011217. The reversal of 1200022011205 is 5021102200021.

It is a happy number.

It is not a de Polignac number, because 1200022011205 - 2²⁵ = 1199988456773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24512362 + ... + 24561268.

It is an arithmetic number, because the mean of its divisors is an integer number (90478234944).

Almost surely, 2^{1200022011205} is an apocalyptic number.

It is an amenable number.

1200022011205 is a deficient number, since it is larger than the sum of its proper divisors (247629747899).

1200022011205 is a wasteful number, since it uses less digits than its factorization.

1200022011205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74796.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 1200022011205 its reverse (5021102200021), we get a palindrome (6221124211226).

The spelling of 1200022011205 in words is "one trillion, two hundred billion, twenty-two million, eleven thousand, two hundred five".