22011021021021 has 8 divisors (see below), whose sum is σ = 31074382617984. Its totient is φ = 13810836719040.

The previous prime is 22011021020993. The next prime is 22011021021023. The reversal of 22011021021021 is 12012012011022.

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

It is not a de Polignac number, because 22011021021021 - 2⁶ = 22011021020957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011021021023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215794323685 + ... + 215794323786.

It is an arithmetic number, because the mean of its divisors is an integer number (3884297827248).

Almost surely, 2^{22011021021021} is an apocalyptic number.

It is an amenable number.

22011021021021 is a deficient number, since it is larger than the sum of its proper divisors (9063361596963).

22011021021021 is a wasteful number, since it uses less digits than its factorization.

22011021021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431588647491.

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

Adding to 22011021021021 its reverse (12012012011022), we get a palindrome (34023033032043).

Subtracting from 22011021021021 its reverse (12012012011022), we obtain a palindrome (9999009009999).

The spelling of 22011021021021 in words is "twenty-two trillion, eleven billion, twenty-one million, twenty-one thousand, twenty-one".