1200201001111 has 32 divisors (see below), whose sum is σ = 1406158221312. Its totient is φ = 1003039994880.

The previous prime is 1200201001099. The next prime is 1200201001133. The reversal of 1200201001111 is 1111001020021.

It is not a de Polignac number, because 1200201001111 - 2⁷ = 1200201000983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200201001211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160429491 + ... + 160436971.

It is an arithmetic number, because the mean of its divisors is an integer number (43942444416).

Almost surely, 2^{1200201001111} is an apocalyptic number.

1200201001111 is a deficient number, since it is larger than the sum of its proper divisors (205957220201).

1200201001111 is a wasteful number, since it uses less digits than its factorization.

1200201001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9319.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1200201001111 its reverse (1111001020021), we get a palindrome (2311202021132).

The spelling of 1200201001111 in words is "one trillion, two hundred billion, two hundred one million, one thousand, one hundred eleven".