1200021213011 has 8 divisors (see below), whose sum is σ = 1201356096864. Its totient is φ = 1198686525120.

The previous prime is 1200021212963. The next prime is 1200021213179. The reversal of 1200021213011 is 1103121200021.

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 1200021213011 - 2¹⁸ = 1200020950867 is a prime.

It is a super-2 number, since 2×1200021213011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200021213511) 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, 14619761 + ... + 14701613.

It is an arithmetic number, because the mean of its divisors is an integer number (150169512108).

Almost surely, 2^{1200021213011} is an apocalyptic number.

1200021213011 is a deficient number, since it is larger than the sum of its proper divisors (1334883853).

1200021213011 is an equidigital number, since it uses as much as digits as its factorization.

1200021213011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97981.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1200021213011 its reverse (1103121200021), we get a palindrome (2303142413032).

The spelling of 1200021213011 in words is "one trillion, two hundred billion, twenty-one million, two hundred thirteen thousand, eleven".