1010122011111 has 4 divisors (see below), whose sum is σ = 1346829348152. Its totient is φ = 673414674072.

The previous prime is 1010122011083. The next prime is 1010122011149. The reversal of 1010122011111 is 1111102210101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1010122011111 - 2⁶ = 1010122011047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010132011111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168353668516 + ... + 168353668521.

It is an arithmetic number, because the mean of its divisors is an integer number (336707337038).

Almost surely, 2^{1010122011111} is an apocalyptic number.

1010122011111 is a deficient number, since it is larger than the sum of its proper divisors (336707337041).

1010122011111 is an equidigital number, since it uses as much as digits as its factorization.

1010122011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336707337040.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1010122011111 its reverse (1111102210101), we get a palindrome (2121224221212).

The spelling of 1010122011111 in words is "one trillion, ten billion, one hundred twenty-two million, eleven thousand, one hundred eleven".