20020000202121 has 32 divisors (see below), whose sum is σ = 28282052448000. Its totient is φ = 12553338378240.

The previous prime is 20020000202099. The next prime is 20020000202141. The reversal of 20020000202121 is 12120200002002.

It is not a de Polignac number, because 20020000202121 - 2¹⁵ = 20020000169353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20020000202097 and 20020000202106.

It is not an unprimeable number, because it can be changed into a prime (20020000202141) 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, 1233434076 + ... + 1233450306.

It is an arithmetic number, because the mean of its divisors is an integer number (883814139000).

Almost surely, 2^{20020000202121} is an apocalyptic number.

It is an amenable number.

20020000202121 is a deficient number, since it is larger than the sum of its proper divisors (8262052245879).

20020000202121 is a wasteful number, since it uses less digits than its factorization.

20020000202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30609.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20020000202121 its reverse (12120200002002), we get a palindrome (32140200204123).

The spelling of 20020000202121 in words is "twenty trillion, twenty billion, two hundred two thousand, one hundred twenty-one".