22011221020101 has 4 divisors (see below), whose sum is σ = 29348294693472. Its totient is φ = 14674147346732.

The previous prime is 22011221020051. The next prime is 22011221020121. The reversal of 22011221020101 is 10102012211022.

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 22011221020101 - 2¹⁵ = 22011220987333 is a prime.

It is a super-2 number, since 2×22011221020101² (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 (22011221020121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3668536836681 + ... + 3668536836686.

It is an arithmetic number, because the mean of its divisors is an integer number (7337073673368).

Almost surely, 2^{22011221020101} is an apocalyptic number.

It is an amenable number.

22011221020101 is a deficient number, since it is larger than the sum of its proper divisors (7337073673371).

22011221020101 is an equidigital number, since it uses as much as digits as its factorization.

22011221020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7337073673370.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22011221020101 its reverse (10102012211022), we get a palindrome (32113233231123).

It can be divided in two parts, 2201122 and 1020101, that added together give a palindrome (3221223).

The spelling of 22011221020101 in words is "twenty-two trillion, eleven billion, two hundred twenty-one million, twenty thousand, one hundred one".