10222121012021 has 8 divisors (see below), whose sum is σ = 10587679176600. Its totient is φ = 9857434263040.

The previous prime is 10222121011997. The next prime is 10222121012039. The reversal of 10222121012021 is 12021012122201.

It can be written as a sum of positive squares in 4 ways, for example, as 4948782871396 + 5273338140625 = 2224586^2 + 2296375^2 .

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 10222121012021 - 2⁶ = 10222121011957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222121012921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217830020 + ... + 217876941.

It is an arithmetic number, because the mean of its divisors is an integer number (1323459897075).

Almost surely, 2^{10222121012021} is an apocalyptic number.

It is an amenable number.

10222121012021 is a deficient number, since it is larger than the sum of its proper divisors (365558164579).

10222121012021 is an equidigital number, since it uses as much as digits as its factorization.

10222121012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435707799.

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

Adding to 10222121012021 its reverse (12021012122201), we get a palindrome (22243133134222).

The spelling of 10222121012021 in words is "ten trillion, two hundred twenty-two billion, one hundred twenty-one million, twelve thousand, twenty-one".