10101121222111 has 4 divisors (see below), whose sum is σ = 10101173715000. Its totient is φ = 10101068729224.

The previous prime is 10101121222091. The next prime is 10101121222123. The reversal of 10101121222111 is 11122212110101.

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

It is a cyclic number.

It is not a de Polignac number, because 10101121222111 - 2⁵ = 10101121222079 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 (10101121222411) 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, 25956736 + ... + 26343013.

It is an arithmetic number, because the mean of its divisors is an integer number (2525293428750).

Almost surely, 2^{10101121222111} is an apocalyptic number.

10101121222111 is a deficient number, since it is larger than the sum of its proper divisors (52492889).

10101121222111 is an equidigital number, since it uses as much as digits as its factorization.

10101121222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52492888.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 10101121222111 its reverse (11122212110101), we get a palindrome (21223333332212).

The spelling of 10101121222111 in words is "ten trillion, one hundred one billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred eleven".