10002020210121 has 32 divisors (see below), whose sum is σ = 13459677603840. Its totient is φ = 6606550789056.

The previous prime is 10002020210057. The next prime is 10002020210123. The reversal of 10002020210121 is 12101202020001.

It is not a de Polignac number, because 10002020210121 - 2⁶ = 10002020210057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10002020210097 and 10002020210106.

It is not an unprimeable number, because it can be changed into a prime (10002020210123) 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, 117701770 + ... + 117786716.

It is an arithmetic number, because the mean of its divisors is an integer number (420614925120).

Almost surely, 2^{10002020210121} is an apocalyptic number.

It is an amenable number.

10002020210121 is a deficient number, since it is larger than the sum of its proper divisors (3457657393719).

10002020210121 is a wasteful number, since it uses less digits than its factorization.

10002020210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86013.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10002020210121 its reverse (12101202020001), we get a palindrome (22103222230122).

The spelling of 10002020210121 in words is "ten trillion, two billion, twenty million, two hundred ten thousand, one hundred twenty-one".