1200021122311 has 8 divisors (see below), whose sum is σ = 1386120654864. Its totient is φ = 1026756040320.

The previous prime is 1200021122299. The next prime is 1200021122353. The reversal of 1200021122311 is 1132211200021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1200021122311 - 2²⁷ = 1199886904583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200021122371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3208612440 + ... + 3208612813.

It is an arithmetic number, because the mean of its divisors is an integer number (173265081858).

Almost surely, 2^{1200021122311} is an apocalyptic number.

1200021122311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200021122311 is a deficient number, since it is larger than the sum of its proper divisors (186099532553).

1200021122311 is a wasteful number, since it uses less digits than its factorization.

1200021122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417225281.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1200021122311 its reverse (1132211200021), we get a palindrome (2332232322332).

The spelling of 1200021122311 in words is "one trillion, two hundred billion, twenty-one million, one hundred twenty-two thousand, three hundred eleven".