1200111211110 has 64 divisors (see below), whose sum is σ = 3292242153984. Its totient is φ = 274268755200.

The previous prime is 1200111211099. The next prime is 1200111211111. The reversal of 1200111211110 is 111121110021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200111211111) 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, 931225 + ... + 1807595.

It is an arithmetic number, because the mean of its divisors is an integer number (51441283656).

Almost surely, 2^{1200111211110} is an apocalyptic number.

1200111211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200111211110 is an abundant number, since it is smaller than the sum of its proper divisors (2092130942874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200111211110 is a wasteful number, since it uses less digits than its factorization.

1200111211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882909.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1200111211110 its reverse (111121110021), we get a palindrome (1311232321131).

The spelling of 1200111211110 in words is "one trillion, two hundred billion, one hundred eleven million, two hundred eleven thousand, one hundred ten".