22101111012111 has 16 divisors (see below), whose sum is σ = 30095690448384. Its totient is φ = 14420314470464.

The previous prime is 22101111012049. The next prime is 22101111012119. The reversal of 22101111012111 is 11121011110122.

It is a cyclic number.

It is not a de Polignac number, because 22101111012111 - 2¹¹ = 22101111010063 is a prime.

It is a super-2 number, since 2×22101111012111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101111012119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6282100 + ... + 9146966.

It is an arithmetic number, because the mean of its divisors is an integer number (1880980653024).

Almost surely, 2^{22101111012111} is an apocalyptic number.

22101111012111 is a deficient number, since it is larger than the sum of its proper divisors (7994579436273).

22101111012111 is a wasteful number, since it uses less digits than its factorization.

22101111012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919630.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 22101111012111 its reverse (11121011110122), we get a palindrome (33222122122233).

The spelling of 22101111012111 in words is "twenty-two trillion, one hundred one billion, one hundred eleven million, twelve thousand, one hundred eleven".