1001111212102 has 8 divisors (see below), whose sum is σ = 1502091868896. Its totient is φ = 500413922472.

The previous prime is 1001111212081. The next prime is 1001111212103. The reversal of 1001111212102 is 2012121111001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001111212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70832958 + ... + 70847089.

It is an arithmetic number, because the mean of its divisors is an integer number (187761483612).

Almost surely, 2^{1001111212102} is an apocalyptic number.

1001111212102 is a deficient number, since it is larger than the sum of its proper divisors (500980656794).

1001111212102 is a wasteful number, since it uses less digits than its factorization.

1001111212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141683582.

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

Adding to 1001111212102 its reverse (2012121111001), we get a palindrome (3013232323103).

The spelling of 1001111212102 in words is "one trillion, one billion, one hundred eleven million, two hundred twelve thousand, one hundred two".