1010020020121 has 8 divisors (see below), whose sum is σ = 1154905769024. Its totient is φ = 865283564880.

The previous prime is 1010020020109. The next prime is 1010020020127. The reversal of 1010020020121 is 1210200200101.

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

It is not a de Polignac number, because 1010020020121 - 2⁵ = 1010020020089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010020020098 and 1010020020107.

It is not an unprimeable number, because it can be changed into a prime (1010020020127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37308915 + ... + 37335976.

It is an arithmetic number, because the mean of its divisors is an integer number (144363221128).

Almost surely, 2^{1010020020121} is an apocalyptic number.

It is an amenable number.

1010020020121 is a deficient number, since it is larger than the sum of its proper divisors (144885748903).

1010020020121 is an equidigital number, since it uses as much as digits as its factorization.

1010020020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74646831.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1010020020121 its reverse (1210200200101), we get a palindrome (2220220220222).

The spelling of 1010020020121 in words is "one trillion, ten billion, twenty million, twenty thousand, one hundred twenty-one".