22411421021021 has 4 divisors (see below), whose sum is σ = 22535241026844. Its totient is φ = 22287601015200.

The previous prime is 22411421020949. The next prime is 22411421021051. The reversal of 22411421021021 is 12012012411422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4633299300100 + 17778121720921 = 2152510^2 + 4216411^2 .

It is a cyclic number.

It is not a de Polignac number, because 22411421021021 - 2¹⁸ = 22411420758877 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 (22411421021051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61910002640 + ... + 61910003001.

It is an arithmetic number, because the mean of its divisors is an integer number (5633810256711).

Almost surely, 2^{22411421021021} is an apocalyptic number.

It is an amenable number.

22411421021021 is a deficient number, since it is larger than the sum of its proper divisors (123820005823).

22411421021021 is a wasteful number, since it uses less digits than its factorization.

22411421021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123820005822.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 22411421021021 its reverse (12012012411422), we get a palindrome (34423433432443).

The spelling of 22411421021021 in words is "twenty-two trillion, four hundred eleven billion, four hundred twenty-one million, twenty-one thousand, twenty-one".