201202120120221 has 64 divisors (see below), whose sum is σ = 327153586176000. Its totient is φ = 121199188904640.

The previous prime is 201202120120187. The next prime is 201202120120259. The reversal of 201202120120221 is 122021021202102.

It is a happy number.

201202120120221 is a `hidden beast` number, since 2 + 0 + 1 + 202 + 120 + 120 + 221 = 666.

It is not a de Polignac number, because 201202120120221 - 2²² = 201202115925917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201202120120194 and 201202120120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202120120021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 169943620 + ... + 171123458.

It is an arithmetic number, because the mean of its divisors is an integer number (5111774784000).

Almost surely, 2^{201202120120221} is an apocalyptic number.

It is an amenable number.

201202120120221 is a deficient number, since it is larger than the sum of its proper divisors (125951466055779).

201202120120221 is a wasteful number, since it uses less digits than its factorization.

201202120120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183351 (or 1183345 counting only the distinct ones).

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

Adding to 201202120120221 its reverse (122021021202102), we get a palindrome (323223141322323).

The spelling of 201202120120221 in words is "two hundred one trillion, two hundred two billion, one hundred twenty million, one hundred twenty thousand, two hundred twenty-one".