22101101111111 has 16 divisors (see below), whose sum is σ = 24651938877696. Its totient is φ = 19808925367000.

The previous prime is 22101101111083. The next prime is 22101101111113. The reversal of 22101101111111 is 11111110110122.

It is not a de Polignac number, because 22101101111111 - 2¹⁴ = 22101101094727 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 (22101101111113) 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, 116841305 + ... + 117030306.

It is an arithmetic number, because the mean of its divisors is an integer number (1540746179856).

Almost surely, 2^{22101101111111} is an apocalyptic number.

22101101111111 is a deficient number, since it is larger than the sum of its proper divisors (2550837766585).

22101101111111 is an equidigital number, since it uses as much as digits as its factorization.

22101101111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233871715 (or 233871693 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 22101101111111 its reverse (11111110110122), we get a palindrome (33212211221233).

The spelling of 22101101111111 in words is "twenty-two trillion, one hundred one billion, one hundred one million, one hundred eleven thousand, one hundred eleven".