21022200121201 has 8 divisors (see below), whose sum is σ = 21204648687744. Its totient is φ = 20840451933840.

The previous prime is 21022200121199. The next prime is 21022200121297. The reversal of 21022200121201 is 10212100222012.

It is a happy number.

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

It is not a de Polignac number, because 21022200121201 - 2¹ = 21022200121199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022200121501) 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, 175034505 + ... + 175154566.

It is an arithmetic number, because the mean of its divisors is an integer number (2650581085968).

Almost surely, 2^{21022200121201} is an apocalyptic number.

It is an amenable number.

21022200121201 is a deficient number, since it is larger than the sum of its proper divisors (182448566543).

21022200121201 is a wasteful number, since it uses less digits than its factorization.

21022200121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350189591.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21022200121201 its reverse (10212100222012), we get a palindrome (31234300343213).

The spelling of 21022200121201 in words is "twenty-one trillion, twenty-two billion, two hundred million, one hundred twenty-one thousand, two hundred one".