10002020102121 has 8 divisors (see below), whose sum is σ = 13619772054144. Its totient is φ = 6526140775760.

The previous prime is 10002020102099. The next prime is 10002020102159. The reversal of 10002020102121 is 12120102020001.

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 10002020102121 - 2⁵ = 10002020102089 is a prime.

It is a super-2 number, since 2×10002020102121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10002020102097 and 10002020102106.

It is not an unprimeable number, because it can be changed into a prime (10002020102621) 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, 35468156250 + ... + 35468156531.

It is an arithmetic number, because the mean of its divisors is an integer number (1702471506768).

Almost surely, 2^{10002020102121} is an apocalyptic number.

It is an amenable number.

10002020102121 is a deficient number, since it is larger than the sum of its proper divisors (3617751952023).

10002020102121 is an equidigital number, since it uses as much as digits as its factorization.

10002020102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70936312831.

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

Adding to 10002020102121 its reverse (12120102020001), we get a palindrome (22122122122122).

The spelling of 10002020102121 in words is "ten trillion, two billion, twenty million, one hundred two thousand, one hundred twenty-one".