201202030102021 has 32 divisors (see below), whose sum is σ = 231576743059200. Its totient is φ = 173165940218880.

The previous prime is 201202030101907. The next prime is 201202030102027. The reversal of 201202030102021 is 120201030202102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201202030102021 - 2²¹ = 201202028004869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201202030101986 and 201202030102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202030102027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7057600 + ... + 21265318.

It is an arithmetic number, because the mean of its divisors is an integer number (7236773220600).

Almost surely, 2^{201202030102021} is an apocalyptic number.

It is an amenable number.

201202030102021 is a deficient number, since it is larger than the sum of its proper divisors (30374712957179).

201202030102021 is a wasteful number, since it uses less digits than its factorization.

201202030102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14208349.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 201202030102021 its reverse (120201030202102), we get a palindrome (321403060304123).

The spelling of 201202030102021 in words is "two hundred one trillion, two hundred two billion, thirty million, one hundred two thousand, twenty-one".