22021322130001 has 4 divisors (see below), whose sum is σ = 22021421716404. Its totient is φ = 22021222543600.

The previous prime is 22021322129987. The next prime is 22021322130007. The reversal of 22021322130001 is 10003122312022.

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 9200453900625 + 12820868229376 = 3033225^2 + 3580624^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021322130001 - 2²¹ = 22021320032849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021322130007) 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, 49460770 + ... + 49904011.

It is an arithmetic number, because the mean of its divisors is an integer number (5505355429101).

Almost surely, 2^{22021322130001} is an apocalyptic number.

It is an amenable number.

22021322130001 is a deficient number, since it is larger than the sum of its proper divisors (99586403).

22021322130001 is an equidigital number, since it uses as much as digits as its factorization.

22021322130001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99586402.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22021322130001 its reverse (10003122312022), we get a palindrome (32024444442023).

The spelling of 22021322130001 in words is "twenty-two trillion, twenty-one billion, three hundred twenty-two million, one hundred thirty thousand, one".