20020022202121 has 16 divisors (see below), whose sum is σ = 21174437972800. Its totient is φ = 18875686737600.

The previous prime is 20020022202067. The next prime is 20020022202149. The reversal of 20020022202121 is 12120222002002.

It is a cyclic number.

It is not a de Polignac number, because 20020022202121 - 2¹⁵ = 20020022169353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020022202095 and 20020022202104.

It is not an unprimeable number, because it can be changed into a prime (20020022202151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115809811 + ... + 115982551.

It is an arithmetic number, because the mean of its divisors is an integer number (1323402373300).

Almost surely, 2^{20020022202121} is an apocalyptic number.

It is an amenable number.

20020022202121 is a deficient number, since it is larger than the sum of its proper divisors (1154415770679).

20020022202121 is a wasteful number, since it uses less digits than its factorization.

20020022202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201880.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20020022202121 its reverse (12120222002002), we get a palindrome (32140244204123).

The spelling of 20020022202121 in words is "twenty trillion, twenty billion, twenty-two million, two hundred two thousand, one hundred twenty-one".