201222102021 has 8 divisors (see below), whose sum is σ = 268298214240. Its totient is φ = 134147028912.

The previous prime is 201222102013. The next prime is 201222102041. The reversal of 201222102021 is 120201222102.

201222102021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 201222102021 - 2³ = 201222102013 is a prime.

It is a super-3 number, since 3×201222102021³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222102041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578611 + ... + 858623.

It is an arithmetic number, because the mean of its divisors is an integer number (33537276780).

Almost surely, 2^201222102021 is an apocalyptic number.

It is an amenable number.

201222102021 is a deficient number, since it is larger than the sum of its proper divisors (67076112219).

201222102021 is a wasteful number, since it uses less digits than its factorization.

201222102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519555.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201222102021 its reverse (120201222102), we get a palindrome (321423324123).

The spelling of 201222102021 in words is "two hundred one billion, two hundred twenty-two million, one hundred two thousand, twenty-one".