201221022001022 has 16 divisors (see below), whose sum is σ = 303372567216000. Its totient is φ = 100096913905560.

The previous prime is 201221022000907. The next prime is 201221022001081. The reversal of 201221022001022 is 220100220122102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15266372 + ... + 25209207.

It is an arithmetic number, because the mean of its divisors is an integer number (18960785451000).

Almost surely, 2^{201221022001022} is an apocalyptic number.

201221022001022 is a deficient number, since it is larger than the sum of its proper divisors (102151545214978).

201221022001022 is a wasteful number, since it uses less digits than its factorization.

201221022001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40488271.

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

Adding to 201221022001022 its reverse (220100220122102), we get a palindrome (421321242123124).

The spelling of 201221022001022 in words is "two hundred one trillion, two hundred twenty-one billion, twenty-two million, one thousand, twenty-two".