201222021112001 has 4 divisors (see below), whose sum is σ = 201948454401492. Its totient is φ = 200495587822512.

The previous prime is 201222021111971. The next prime is 201222021112051. The reversal of 201222021112001 is 100211120222102.

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 128138415390976 + 73083605721025 = 11319824^2 + 8548895^2 .

It is a cyclic number.

It is not a de Polignac number, because 201222021112001 - 2³⁴ = 201204841242817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201222021112051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363216644330 + ... + 363216644883.

It is an arithmetic number, because the mean of its divisors is an integer number (50487113600373).

Almost surely, 2^{201222021112001} is an apocalyptic number.

It is an amenable number.

201222021112001 is a deficient number, since it is larger than the sum of its proper divisors (726433289491).

201222021112001 is an equidigital number, since it uses as much as digits as its factorization.

201222021112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726433289490.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201222021112001 its reverse (100211120222102), we get a palindrome (301433141334103).

The spelling of 201222021112001 in words is "two hundred one trillion, two hundred twenty-two billion, twenty-one million, one hundred twelve thousand, one".