1200000321211 has 16 divisors (see below), whose sum is σ = 1257272202240. Its totient is φ = 1144009859040.

The previous prime is 1200000321167. The next prime is 1200000321257. The reversal of 1200000321211 is 1121230000021.

It is not a de Polignac number, because 1200000321211 - 2²⁷ = 1199866103483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200000321191 and 1200000321200.

It is not an unprimeable number, because it can be changed into a prime (1200000321271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416796 + ... + 1604281.

It is an arithmetic number, because the mean of its divisors is an integer number (78579512640).

Almost surely, 2^{1200000321211} is an apocalyptic number.

1200000321211 is a deficient number, since it is larger than the sum of its proper divisors (57271881029).

1200000321211 is a wasteful number, since it uses less digits than its factorization.

1200000321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021394.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1200000321211 its reverse (1121230000021), we get a palindrome (2321230321232).

The spelling of 1200000321211 in words is "one trillion, two hundred billion, three hundred twenty-one thousand, two hundred eleven".