1200111111002 has 16 divisors (see below), whose sum is σ = 1816273459392. Its totient is φ = 594704980800.

The previous prime is 1200111110999. The next prime is 1200111111037. The reversal of 1200111111002 is 2001111110021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4458008 + ... + 4719539.

It is an arithmetic number, because the mean of its divisors is an integer number (113517091212).

Almost surely, 2^{1200111111002} is an apocalyptic number.

1200111111002 is a deficient number, since it is larger than the sum of its proper divisors (616162348390).

1200111111002 is a wasteful number, since it uses less digits than its factorization.

1200111111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9178133.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1200111111002 its reverse (2001111110021), we get a palindrome (3201222221023).

The spelling of 1200111111002 in words is "one trillion, two hundred billion, one hundred eleven million, one hundred eleven thousand, two".