10122021112111 has 4 divisors (see below), whose sum is σ = 10654759065400. Its totient is φ = 9589283158824.

The previous prime is 10122021112109. The next prime is 10122021112213. The reversal of 10122021112111 is 11121112022101.

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 10122021112111 - 2¹ = 10122021112109 is a prime.

It is a super-2 number, since 2×10122021112111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122021113111) 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 3 ways as a sum of consecutive naturals, for example, 266368976616 + ... + 266368976653.

It is an arithmetic number, because the mean of its divisors is an integer number (2663689766350).

Almost surely, 2^{10122021112111} is an apocalyptic number.

10122021112111 is a deficient number, since it is larger than the sum of its proper divisors (532737953289).

10122021112111 is an equidigital number, since it uses as much as digits as its factorization.

10122021112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532737953288.

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

Adding to 10122021112111 its reverse (11121112022101), we get a palindrome (21243133134212).

The spelling of 10122021112111 in words is "ten trillion, one hundred twenty-two billion, twenty-one million, one hundred twelve thousand, one hundred eleven".