1200120201111 has 8 divisors (see below), whose sum is σ = 1723249519600. Its totient is φ = 738535508352.

The previous prime is 1200120201067. The next prime is 1200120201151. The reversal of 1200120201111 is 1111020210021.

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

It is not a de Polignac number, because 1200120201111 - 2¹⁸ = 1200119938967 is a prime.

It is a super-2 number, since 2×1200120201111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200120201151) 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, 15386156386 + ... + 15386156463.

It is an arithmetic number, because the mean of its divisors is an integer number (215406189950).

Almost surely, 2^{1200120201111} is an apocalyptic number.

1200120201111 is a deficient number, since it is larger than the sum of its proper divisors (523129318489).

1200120201111 is a wasteful number, since it uses less digits than its factorization.

1200120201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30772312865.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1200120201111 its reverse (1111020210021), we get a palindrome (2311140411132).

The spelling of 1200120201111 in words is "one trillion, two hundred billion, one hundred twenty million, two hundred one thousand, one hundred eleven".