21122110010111 has 8 divisors (see below), whose sum is σ = 23110676616144. Its totient is φ = 19144939201920.

The previous prime is 21122110010101. The next prime is 21122110010117. The reversal of 21122110010111 is 11101001122112.

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

It is a cyclic number.

It is not a de Polignac number, because 21122110010111 - 2¹⁴ = 21122109993727 is a prime.

It is a super-2 number, since 2×21122110010111² (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 (21122110010117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2848945580 + ... + 2848952993.

It is an arithmetic number, because the mean of its divisors is an integer number (2888834577018).

Almost surely, 2^{21122110010111} is an apocalyptic number.

21122110010111 is a deficient number, since it is larger than the sum of its proper divisors (1988566606033).

21122110010111 is a wasteful number, since it uses less digits than its factorization.

21122110010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697898921.

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

Adding to 21122110010111 its reverse (11101001122112), we get a palindrome (32223111132223).

The spelling of 21122110010111 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred ten million, ten thousand, one hundred eleven".