202010112210121 has 8 divisors (see below), whose sum is σ = 204096442975880. Its totient is φ = 199923858021888.

The previous prime is 202010112210079. The next prime is 202010112210217. The reversal of 202010112210121 is 121012211010202.

It can be written as a sum of positive squares in 4 ways, for example, as 3936013955721 + 198074098254400 = 1983939^2 + 14073880^2 .

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 202010112210121 - 2⁴¹ = 199811088954569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202010112210095 and 202010112210104.

It is not an unprimeable number, because it can be changed into a prime (202010112210521) 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, 13833606 + ... + 24400591.

It is an arithmetic number, because the mean of its divisors is an integer number (25512055371985).

Almost surely, 2^{202010112210121} is an apocalyptic number.

It is an amenable number.

202010112210121 is a deficient number, since it is larger than the sum of its proper divisors (2086330765759).

202010112210121 is an equidigital number, since it uses as much as digits as its factorization.

202010112210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38288763.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 202010112210121 its reverse (121012211010202), we get a palindrome (323022323220323).

The spelling of 202010112210121 in words is "two hundred two trillion, ten billion, one hundred twelve million, two hundred ten thousand, one hundred twenty-one".