22002202021001 has 4 divisors (see below), whose sum is σ = 22002211402500. Its totient is φ = 22002192639504.

The previous prime is 22002202020991. The next prime is 22002202021027. The reversal of 22002202021001 is 10012020220022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17932480824976 + 4069721196025 = 4234676^2 + 2017355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22002202021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22002202021901) 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 3 ways as a sum of consecutive naturals, for example, 2299775 + ... + 7020923.

It is an arithmetic number, because the mean of its divisors is an integer number (5500552850625).

Almost surely, 2^{22002202021001} is an apocalyptic number.

It is an amenable number.

22002202021001 is a deficient number, since it is larger than the sum of its proper divisors (9381499).

22002202021001 is an equidigital number, since it uses as much as digits as its factorization.

22002202021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381498.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22002202021001 its reverse (10012020220022), we get a palindrome (32014222241023).

The spelling of 22002202021001 in words is "twenty-two trillion, two billion, two hundred two million, twenty-one thousand, one".