1200111101213 has 16 divisors (see below), whose sum is σ = 1264856226816. Its totient is φ = 1136470072320.

The previous prime is 1200111101177. The next prime is 1200111101243. The reversal of 1200111101213 is 3121011110021.

It is a cyclic number.

It is not a de Polignac number, because 1200111101213 - 2¹⁰ = 1200111100189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200111101243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281981 + ... + 1574717.

It is an arithmetic number, because the mean of its divisors is an integer number (79053514176).

Almost surely, 2^{1200111101213} is an apocalyptic number.

It is an amenable number.

1200111101213 is a deficient number, since it is larger than the sum of its proper divisors (64745125603).

1200111101213 is a wasteful number, since it uses less digits than its factorization.

1200111101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293164.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1200111101213 its reverse (3121011110021), we get a palindrome (4321122211234).

The spelling of 1200111101213 in words is "one trillion, two hundred billion, one hundred eleven million, one hundred one thousand, two hundred thirteen".