1001111122102 has 32 divisors (see below), whose sum is σ = 1945479110400. Its totient is φ = 375199540128.

The previous prime is 1001111122069. The next prime is 1001111122103. The reversal of 1001111122102 is 2012211111001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001111122103) 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 15 ways as a sum of consecutive naturals, for example, 144749452 + ... + 144756367.

It is an arithmetic number, because the mean of its divisors is an integer number (60796222200).

Almost surely, 2^{1001111122102} is an apocalyptic number.

1001111122102 is a deficient number, since it is larger than the sum of its proper divisors (944367988298).

1001111122102 is a wasteful number, since it uses less digits than its factorization.

1001111122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289505860.

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

Adding to 1001111122102 its reverse (2012211111001), we get a palindrome (3013322233103).

The spelling of 1001111122102 in words is "one trillion, one billion, one hundred eleven million, one hundred twenty-two thousand, one hundred two".