26112212101 has 4 divisors (see below), whose sum is σ = 26128462752. Its totient is φ = 26095961452.

The previous prime is 26112212081. The next prime is 26112212123. The reversal of 26112212101 is 10121221162.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26112212101 - 2¹¹ = 26112210053 is a prime.

It is a super-2 number, since 2×26112212101² (a number of 22 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 (26112282101) 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, 8122915 + ... + 8126128.

It is an arithmetic number, because the mean of its divisors is an integer number (6532115688).

Almost surely, 2^26112212101 is an apocalyptic number.

It is an amenable number.

26112212101 is a deficient number, since it is larger than the sum of its proper divisors (16250651).

26112212101 is a wasteful number, since it uses less digits than its factorization.

26112212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16250650.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 26112212101 its reverse (10121221162), we get a palindrome (36233433263).

The spelling of 26112212101 in words is "twenty-six billion, one hundred twelve million, two hundred twelve thousand, one hundred one".