1010111221211 has 8 divisors (see below), whose sum is σ = 1037026189584. Its totient is φ = 983487225760.

The previous prime is 1010111221157. The next prime is 1010111221213. The reversal of 1010111221211 is 1121221110101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010111221211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010111221213) 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 7 ways as a sum of consecutive naturals, for example, 72736196 + ... + 72750081.

It is an arithmetic number, because the mean of its divisors is an integer number (129628273698).

Almost surely, 2^{1010111221211} is an apocalyptic number.

1010111221211 is a deficient number, since it is larger than the sum of its proper divisors (26914968373).

1010111221211 is a wasteful number, since it uses less digits than its factorization.

1010111221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145486461.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1010111221211 its reverse (1121221110101), we get a palindrome (2131332331312).

The spelling of 1010111221211 in words is "one trillion, ten billion, one hundred eleven million, two hundred twenty-one thousand, two hundred eleven".