201202122010021 has 8 divisors (see below), whose sum is σ = 221666424249888. Its totient is φ = 181100019810000.

The previous prime is 201202122009997. The next prime is 201202122010061. The reversal of 201202122010021 is 120010221202102.

It is a happy number.

201202122010021 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 a cyclic number.

It is not a de Polignac number, because 201202122010021 - 2¹¹ = 201202122007973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201202122009977 and 201202122010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202122010061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90550008795 + ... + 90550011016.

It is an arithmetic number, because the mean of its divisors is an integer number (27708303031236).

Almost surely, 2^{201202122010021} is an apocalyptic number.

It is an amenable number.

201202122010021 is a deficient number, since it is larger than the sum of its proper divisors (20464302239867).

201202122010021 is a wasteful number, since it uses less digits than its factorization.

201202122010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181100019923.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201202122010021 its reverse (120010221202102), we get a palindrome (321212343212123).

It can be divided in two parts, 2012021 and 22010021, that added together give a palindrome (24022042).

The spelling of 201202122010021 in words is "two hundred one trillion, two hundred two billion, one hundred twenty-two million, ten thousand, twenty-one".