22321121211001 has 4 divisors (see below), whose sum is σ = 22321148138100. Its totient is φ = 22321094283904.

The previous prime is 22321121210957. The next prime is 22321121211013. The reversal of 22321121211001 is 10011212112322.

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 10449547595776 + 11871573615225 = 3232576^2 + 3445515^2 .

It is a cyclic number.

It is not a de Polignac number, because 22321121211001 - 2²⁷ = 22320986993273 is a prime.

It is a super-3 number, since 3×22321121211001³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22321121211001.

It is not an unprimeable number, because it can be changed into a prime (22321121211061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12179296 + ... + 13891633.

It is an arithmetic number, because the mean of its divisors is an integer number (5580287034525).

Almost surely, 2^{22321121211001} is an apocalyptic number.

It is an amenable number.

22321121211001 is a deficient number, since it is larger than the sum of its proper divisors (26927099).

22321121211001 is an equidigital number, since it uses as much as digits as its factorization.

22321121211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26927098.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 22321121211001 its reverse (10011212112322), we get a palindrome (32332333323323).

The spelling of 22321121211001 in words is "twenty-two trillion, three hundred twenty-one billion, one hundred twenty-one million, two hundred eleven thousand, one".