1000001211102 has 12 divisors (see below), whose sum is σ = 2166669290760. Its totient is φ = 333333737028.

The previous prime is 1000001211089. The next prime is 1000001211109. The reversal of 1000001211102 is 2011121000001.

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 (1000001211109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27777811402 + ... + 27777811437.

It is an arithmetic number, because the mean of its divisors is an integer number (180555774230).

Almost surely, 2^{1000001211102} is an apocalyptic number.

1000001211102 is an abundant number, since it is smaller than the sum of its proper divisors (1166668079658).

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

1000001211102 is a wasteful number, since it uses less digits than its factorization.

1000001211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55555622847 (or 55555622844 counting only the distinct ones).

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

Adding to 1000001211102 its reverse (2011121000001), we get a palindrome (3011122211103).

The spelling of 1000001211102 in words is "one trillion, one million, two hundred eleven thousand, one hundred two".