2020102102121 has 8 divisors (see below), whose sum is σ = 2036304501000. Its totient is φ = 2003934965760.

The previous prime is 2020102102103. The next prime is 2020102102129. The reversal of 2020102102121 is 1212012010202.

It can be written as a sum of positive squares in 4 ways, for example, as 2466512896 + 2017635589225 = 49664^2 + 1420435^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2020102102121 - 2³⁴ = 2002922232937 is a prime.

It is a super-2 number, since 2×2020102102121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020102102096 and 2020102102105.

It is not an unprimeable number, because it can be changed into a prime (2020102102129) 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, 8700590 + ... + 8929751.

It is an arithmetic number, because the mean of its divisors is an integer number (254538062625).

Almost surely, 2^{2020102102121} is an apocalyptic number.

It is an amenable number.

2020102102121 is a deficient number, since it is larger than the sum of its proper divisors (16202398879).

2020102102121 is a wasteful number, since it uses less digits than its factorization.

2020102102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17631259.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2020102102121 its reverse (1212012010202), we get a palindrome (3232114112323).

The spelling of 2020102102121 in words is "two trillion, twenty billion, one hundred two million, one hundred two thousand, one hundred twenty-one".