20020102022121 has 8 divisors (see below), whose sum is σ = 26710184127744. Its totient is φ = 13338377298960.

The previous prime is 20020102022113. The next prime is 20020102022177. The reversal of 20020102022121 is 12122020102002.

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

It is not a de Polignac number, because 20020102022121 - 2³ = 20020102022113 is a prime.

It is a super-2 number, since 2×20020102022121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20020102022121.

It is not an unprimeable number, because it can be changed into a prime (20020102022101) 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, 2089340025 + ... + 2089349606.

It is an arithmetic number, because the mean of its divisors is an integer number (3338773015968).

Almost surely, 2^{20020102022121} is an apocalyptic number.

It is an amenable number.

20020102022121 is a deficient number, since it is larger than the sum of its proper divisors (6690082105623).

20020102022121 is a wasteful number, since it uses less digits than its factorization.

20020102022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178691231.

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

Adding to 20020102022121 its reverse (12122020102002), we get a palindrome (32142122124123).

The spelling of 20020102022121 in words is "twenty trillion, twenty billion, one hundred two million, twenty-two thousand, one hundred twenty-one".