202010001121 has 16 divisors (see below), whose sum is σ = 213158816640. Its totient is φ = 191063347200.

The previous prime is 202010001091. The next prime is 202010001191. The reversal of 202010001121 is 121100010202.

It is a cyclic number.

It is not a de Polignac number, because 202010001121 - 2⁷ = 202010000993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202010001098 and 202010001107.

It is not an unprimeable number, because it can be changed into a prime (202010001191) 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 15 ways as a sum of consecutive naturals, for example, 1729846 + ... + 1842928.

It is an arithmetic number, because the mean of its divisors is an integer number (13322426040).

Almost surely, 2^202010001121 is an apocalyptic number.

It is an amenable number.

202010001121 is a deficient number, since it is larger than the sum of its proper divisors (11148815519).

202010001121 is a wasteful number, since it uses less digits than its factorization.

202010001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113976.

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

Adding to 202010001121 its reverse (121100010202), we get a palindrome (323110011323).

The spelling of 202010001121 in words is "two hundred two billion, ten million, one thousand, one hundred twenty-one".