1200011001102 has 12 divisors (see below), whose sum is σ = 2600023835760. Its totient is φ = 400003667028.

The previous prime is 1200011001037. The next prime is 1200011001103. The reversal of 1200011001102 is 2011001100021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200011001103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33333638902 + ... + 33333638937.

It is an arithmetic number, because the mean of its divisors is an integer number (216668652980).

Almost surely, 2^{1200011001102} is an apocalyptic number.

1200011001102 is an abundant number, since it is smaller than the sum of its proper divisors (1400012834658).

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

1200011001102 is a wasteful number, since it uses less digits than its factorization.

1200011001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66667277847 (or 66667277844 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1200011001102 its reverse (2011001100021), we get a palindrome (3211012101123).

The spelling of 1200011001102 in words is "one trillion, two hundred billion, eleven million, one thousand, one hundred two".