22101122121211 has 8 divisors (see below), whose sum is σ = 25578152184320. Its totient is φ = 18704023783848.

The previous prime is 22101122121191. The next prime is 22101122121293. The reversal of 22101122121211 is 11212122110122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22101122121211 - 2⁷ = 22101122121083 is a prime.

It is a super-2 number, since 2×22101122121211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22101122121811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19982930841 + ... + 19982931946.

It is an arithmetic number, because the mean of its divisors is an integer number (3197269023040).

Almost surely, 2^{22101122121211} is an apocalyptic number.

22101122121211 is a deficient number, since it is larger than the sum of its proper divisors (3477030063109).

22101122121211 is an equidigital number, since it uses as much as digits as its factorization.

22101122121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39965862873.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22101122121211 its reverse (11212122110122), we get a palindrome (33313244231333).

The spelling of 22101122121211 in words is "twenty-two trillion, one hundred one billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred eleven".