22112220011021 has 8 divisors (see below), whose sum is σ = 25274771649600. Its totient is φ = 18950584138848.

The previous prime is 22112220011017. The next prime is 22112220011069. The reversal of 22112220011021 is 12011002221122.

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 22112220011021 - 2² = 22112220011017 is a prime.

It is a super-2 number, since 2×22112220011021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112220071021) 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 7 ways as a sum of consecutive naturals, for example, 228889856 + ... + 228986441.

It is an arithmetic number, because the mean of its divisors is an integer number (3159346456200).

Almost surely, 2^{22112220011021} is an apocalyptic number.

It is an amenable number.

22112220011021 is a deficient number, since it is larger than the sum of its proper divisors (3162551638579).

22112220011021 is an equidigital number, since it uses as much as digits as its factorization.

22112220011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457883203.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22112220011021 its reverse (12011002221122), we get a palindrome (34123222232143).

The spelling of 22112220011021 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty million, eleven thousand, twenty-one".