22011121010101 has 4 divisors (see below), whose sum is σ = 22011136160032. Its totient is φ = 22011105860172.

The previous prime is 22011121010083. The next prime is 22011121010119. The reversal of 22011121010101 is 10101012111022.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (22011121010083) and next prime (22011121010119).

It is a cyclic number.

It is not a de Polignac number, because 22011121010101 - 2²⁹ = 22010584139189 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 (22011121010161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5133291 + ... + 8388856.

It is an arithmetic number, because the mean of its divisors is an integer number (5502784040008).

Almost surely, 2^{22011121010101} is an apocalyptic number.

It is an amenable number.

22011121010101 is a deficient number, since it is larger than the sum of its proper divisors (15149931).

22011121010101 is a wasteful number, since it uses less digits than its factorization.

22011121010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15149930.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 22011121010101 its reverse (10101012111022), we get a palindrome (32112133121123).

The spelling of 22011121010101 in words is "twenty-two trillion, eleven billion, one hundred twenty-one million, ten thousand, one hundred one".