10000002020121 has 24 divisors (see below), whose sum is σ = 15072819353280. Its totient is φ = 6376663730976.

The previous prime is 10000002020093. The next prime is 10000002020123. The reversal of 10000002020121 is 12102020000001.

It is not a de Polignac number, because 10000002020121 - 2¹⁰ = 10000002019097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10000002020123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8670235 + ... + 9755663.

It is an arithmetic number, because the mean of its divisors is an integer number (628034139720).

Almost surely, 2^{10000002020121} is an apocalyptic number.

It is an amenable number.

10000002020121 is a deficient number, since it is larger than the sum of its proper divisors (5072817333159).

10000002020121 is a wasteful number, since it uses less digits than its factorization.

10000002020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129965 (or 1129962 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10000002020121 its reverse (12102020000001), we get a palindrome (22102022020122).

The spelling of 10000002020121 in words is "ten trillion, two million, twenty thousand, one hundred twenty-one".