201222021010221 has 32 divisors (see below), whose sum is σ = 305439082502400. Its totient is φ = 130849758524160.

The previous prime is 201222021010211. The next prime is 201222021010229. The reversal of 201222021010221 is 122010120222102.

It is a happy number.

201222021010221 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 220 + 210 + 10 + 221 = 666.

It is not a de Polignac number, because 201222021010221 - 2¹⁷ = 201222020879149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201222021010194 and 201222021010203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222021010229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12799536 + ... + 23796473.

It is an arithmetic number, because the mean of its divisors is an integer number (9544971328200).

Almost surely, 2^{201222021010221} is an apocalyptic number.

It is an amenable number.

201222021010221 is a deficient number, since it is larger than the sum of its proper divisors (104217061492179).

201222021010221 is a wasteful number, since it uses less digits than its factorization.

201222021010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36601026 (or 36601020 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201222021010221 its reverse (122010120222102), we get a palindrome (323232141232323).

The spelling of 201222021010221 in words is "two hundred one trillion, two hundred twenty-two billion, twenty-one million, ten thousand, two hundred twenty-one".