1200403021211 has 8 divisors (see below), whose sum is σ = 1235596615680. Its totient is φ = 1165611639528.

The previous prime is 1200403021199. The next prime is 1200403021289. The reversal of 1200403021211 is 1121203040021.

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 1200403021211 - 2¹⁸ = 1200402759067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200403021211.

It is not an unprimeable number, because it can be changed into a prime (1200403021711) 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, 100547141 + ... + 100559078.

It is an arithmetic number, because the mean of its divisors is an integer number (154449576960).

Almost surely, 2^{1200403021211} is an apocalyptic number.

1200403021211 is a deficient number, since it is larger than the sum of its proper divisors (35193594469).

1200403021211 is a wasteful number, since it uses less digits than its factorization.

1200403021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201106393.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1200403021211 its reverse (1121203040021), we get a palindrome (2321606061232).

The spelling of 1200403021211 in words is "one trillion, two hundred billion, four hundred three million, twenty-one thousand, two hundred eleven".