1200100111102 has 4 divisors (see below), whose sum is σ = 1800150166656. Its totient is φ = 600050055550.

The previous prime is 1200100111039. The next prime is 1200100111127. The reversal of 1200100111102 is 2011110010021.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300025027774 + ... + 300025027777.

It is an arithmetic number, because the mean of its divisors is an integer number (450037541664).

Almost surely, 2^{1200100111102} is an apocalyptic number.

1200100111102 is a deficient number, since it is larger than the sum of its proper divisors (600050055554).

1200100111102 is an equidigital number, since it uses as much as digits as its factorization.

1200100111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600050055553.

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

Adding to 1200100111102 its reverse (2011110010021), we get a palindrome (3211210121123).

The spelling of 1200100111102 in words is "one trillion, two hundred billion, one hundred million, one hundred eleven thousand, one hundred two".