20222221001201 has 8 divisors (see below), whose sum is σ = 20263942760040. Its totient is φ = 20180534203648.

The previous prime is 20222221001141. The next prime is 20222221001209. The reversal of 20222221001201 is 10210012222202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10446599694400 + 9775621306801 = 3232120^2 + 3126599^2 .

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 20222221001201 - 2⁶ = 20222221001137 is a prime.

It is a super-4 number, since 4×20222221001201⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20222221001201.

It is not an unprimeable number, because it can be changed into a prime (20222221001209) 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, 7582136 + ... + 9896121.

It is an arithmetic number, because the mean of its divisors is an integer number (2532992845005).

Almost surely, 2^{20222221001201} is an apocalyptic number.

It is an amenable number.

20222221001201 is a deficient number, since it is larger than the sum of its proper divisors (41721758839).

20222221001201 is a wasteful number, since it uses less digits than its factorization.

20222221001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17480643.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20222221001201 its reverse (10210012222202), we get a palindrome (30432233223403).

The spelling of 20222221001201 in words is "twenty trillion, two hundred twenty-two billion, two hundred twenty-one million, one thousand, two hundred one".