10202121112021 has 8 divisors (see below), whose sum is σ = 10247995627520. Its totient is φ = 10156247713872.

The previous prime is 10202121111979. The next prime is 10202121112037. The reversal of 10202121112021 is 12021112120201.

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 10202121112021 - 2⁴¹ = 8003097856469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202121111986 and 10202121112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202121112091) 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, 22011100 + ... + 22469818.

It is an arithmetic number, because the mean of its divisors is an integer number (1280999453440).

Almost surely, 2^{10202121112021} is an apocalyptic number.

It is an amenable number.

10202121112021 is a deficient number, since it is larger than the sum of its proper divisors (45874515499).

10202121112021 is an equidigital number, since it uses as much as digits as its factorization.

10202121112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558675.

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

Adding to 10202121112021 its reverse (12021112120201), we get a palindrome (22223233232222).

The spelling of 10202121112021 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred twelve thousand, twenty-one".