10202121120221 has 8 divisors (see below), whose sum is σ = 10245700183488. Its totient is φ = 10158552360000.

The previous prime is 10202121120197. The next prime is 10202121120239. The reversal of 10202121120221 is 12202112120201.

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 10202121120221 - 2⁴² = 5804074609117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10202121120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202121120421) 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, 587855 + ... + 4555196.

It is an arithmetic number, because the mean of its divisors is an integer number (1280712522936).

Almost surely, 2^{10202121120221} is an apocalyptic number.

It is an amenable number.

10202121120221 is a deficient number, since it is larger than the sum of its proper divisors (43579063267).

10202121120221 is an equidigital number, since it uses as much as digits as its factorization.

10202121120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5151523.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10202121120221 its reverse (12202112120201), we get a palindrome (22404233240422).

The spelling of 10202121120221 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twenty-one".