20020201202121 has 8 divisors (see below), whose sum is σ = 27854192976960. Its totient is φ = 12766505114352.

The previous prime is 20020201202051. The next prime is 20020201202171. The reversal of 20020201202121 is 12120210202002.

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

It is not a de Polignac number, because 20020201202121 - 2¹¹ = 20020201200073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20020201202121.

It is not an unprimeable number, because it can be changed into a prime (20020201202171) 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, 145073921686 + ... + 145073921823.

It is an arithmetic number, because the mean of its divisors is an integer number (3481774122120).

Almost surely, 2^{20020201202121} is an apocalyptic number.

It is an amenable number.

20020201202121 is a deficient number, since it is larger than the sum of its proper divisors (7833991774839).

20020201202121 is a wasteful number, since it uses less digits than its factorization.

20020201202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290147843535.

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

Adding to 20020201202121 its reverse (12120210202002), we get a palindrome (32140411404123).

The spelling of 20020201202121 in words is "twenty trillion, twenty billion, two hundred one million, two hundred two thousand, one hundred twenty-one".