20010220001121 has 64 divisors (see below), whose sum is σ = 31152877516800. Its totient is φ = 11188532298240.

The previous prime is 20010220001089. The next prime is 20010220001153. The reversal of 20010220001121 is 12110002201002.

It is an interprime number because it is at equal distance from previous prime (20010220001089) and next prime (20010220001153).

It is not a de Polignac number, because 20010220001121 - 2⁵ = 20010220001089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20010220001097 and 20010220001106.

It is not an unprimeable number, because it can be changed into a prime (20010220001021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 335155330 + ... + 335215028.

It is an arithmetic number, because the mean of its divisors is an integer number (486763711200).

Almost surely, 2^{20010220001121} is an apocalyptic number.

20010220001121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20010220001121 is a deficient number, since it is larger than the sum of its proper divisors (11142657515679).

20010220001121 is a wasteful number, since it uses less digits than its factorization.

20010220001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61126.

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

Adding to 20010220001121 its reverse (12110002201002), we get a palindrome (32120222202123).

The spelling of 20010220001121 in words is "twenty trillion, ten billion, two hundred twenty million, one thousand, one hundred twenty-one".