2020102120121 has 8 divisors (see below), whose sum is σ = 2028363768000. Its totient is φ = 2011846042960.

The previous prime is 2020102120117. The next prime is 2020102120207. The reversal of 2020102120121 is 1210212010202.

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 2020102120121 - 2² = 2020102120117 is a prime.

It is a super-2 number, since 2×2020102120121² (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 = 2020102120096 and 2020102120105.

It is not an unprimeable number, because it can be changed into a prime (2020102120021) 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, 665165 + ... + 2117226.

It is an arithmetic number, because the mean of its divisors is an integer number (253545471000).

Almost surely, 2^{2020102120121} is an apocalyptic number.

It is an amenable number.

2020102120121 is a deficient number, since it is larger than the sum of its proper divisors (8261647879).

2020102120121 is a wasteful number, since it uses less digits than its factorization.

2020102120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785359.

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

Adding to 2020102120121 its reverse (1210212010202), we get a palindrome (3230314130323).

The spelling of 2020102120121 in words is "two trillion, twenty billion, one hundred two million, one hundred twenty thousand, one hundred twenty-one".