1200111112102 has 32 divisors (see below), whose sum is σ = 2080988236800. Its totient is φ = 508422602688.

The previous prime is 1200111112099. The next prime is 1200111112147. The reversal of 1200111112102 is 2012111110021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4765299 + ... + 5010817.

It is an arithmetic number, because the mean of its divisors is an integer number (65030882400).

Almost surely, 2^{1200111112102} is an apocalyptic number.

1200111112102 is a deficient number, since it is larger than the sum of its proper divisors (880877124698).

1200111112102 is a wasteful number, since it uses less digits than its factorization.

1200111112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249540.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1200111112102 its reverse (2012111110021), we get a palindrome (3212222222123).

The spelling of 1200111112102 in words is "one trillion, two hundred billion, one hundred eleven million, one hundred twelve thousand, one hundred two".