201221001202022 has 8 divisors (see below), whose sum is σ = 301892195866176. Its totient is φ = 100590269246632.

The previous prime is 201221001201977. The next prime is 201221001202069. The reversal of 201221001202022 is 220202100122102.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10115664758 + ... + 10115684649.

It is an arithmetic number, because the mean of its divisors is an integer number (37736524483272).

Almost surely, 2^{201221001202022} is an apocalyptic number.

201221001202022 is a deficient number, since it is larger than the sum of its proper divisors (100671194664154).

201221001202022 is a wasteful number, since it uses less digits than its factorization.

201221001202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20231354382.

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

Adding to 201221001202022 its reverse (220202100122102), we get a palindrome (421423101324124).

The spelling of 201221001202022 in words is "two hundred one trillion, two hundred twenty-one billion, one million, two hundred two thousand, twenty-two".