22202001101221 has 8 divisors (see below), whose sum is σ = 22888376472024. Its totient is φ = 21522523975680.

The previous prime is 22202001101207. The next prime is 22202001101239. The reversal of 22202001101221 is 12210110020222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1177450596 + 22200823650625 = 34314^2 + 4711775^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22202001101221 - 2¹⁹ = 22202000576933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22202001101195 and 22202001101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202001101521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1724554780 + ... + 1724567653.

It is an arithmetic number, because the mean of its divisors is an integer number (2861047059003).

Almost surely, 2^{22202001101221} is an apocalyptic number.

It is an amenable number.

22202001101221 is a deficient number, since it is larger than the sum of its proper divisors (686375370803).

22202001101221 is a wasteful number, since it uses less digits than its factorization.

22202001101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449122631.

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

Adding to 22202001101221 its reverse (12210110020222), we get a palindrome (34412111121443).

The spelling of 22202001101221 in words is "twenty-two trillion, two hundred two billion, one million, one hundred one thousand, two hundred twenty-one".