22011122211101 has 4 divisors (see below), whose sum is σ = 22012246566492. Its totient is φ = 22009997855712.

The previous prime is 22011122211083. The next prime is 22011122211137. The reversal of 22011122211101 is 10111222111022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9050049388900 + 12961072822201 = 3008330^2 + 3600149^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011122211101 - 2³⁸ = 21736244304157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011122211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011122211401) 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, 562148330 + ... + 562187483.

It is an arithmetic number, because the mean of its divisors is an integer number (5503061641623).

Almost surely, 2^{22011122211101} is an apocalyptic number.

It is an amenable number.

22011122211101 is a deficient number, since it is larger than the sum of its proper divisors (1124355391).

22011122211101 is a wasteful number, since it uses less digits than its factorization.

22011122211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124355390.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22011122211101 its reverse (10111222111022), we get a palindrome (32122344322123).

The spelling of 22011122211101 in words is "twenty-two trillion, eleven billion, one hundred twenty-two million, two hundred eleven thousand, one hundred one".