10022122012121 has 4 divisors (see below), whose sum is σ = 10022130076644. Its totient is φ = 10022113947600.

The previous prime is 10022122012117. The next prime is 10022122012141. The reversal of 10022122012121 is 12121022122001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 609890712025 + 9412231300096 = 780955^2 + 3067936^2 .

It is a cyclic number.

It is not a de Polignac number, because 10022122012121 - 2² = 10022122012117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10022122012121.

It is not an unprimeable number, because it can be changed into a prime (10022122012141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1729970 + ... + 4799691.

It is an arithmetic number, because the mean of its divisors is an integer number (2505532519161).

Almost surely, 2^{10022122012121} is an apocalyptic number.

It is an amenable number.

10022122012121 is a deficient number, since it is larger than the sum of its proper divisors (8064523).

10022122012121 is an equidigital number, since it uses as much as digits as its factorization.

10022122012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8064522.

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

Adding to 10022122012121 its reverse (12121022122001), we get a palindrome (22143144134122).

The spelling of 10022122012121 in words is "ten trillion, twenty-two billion, one hundred twenty-two million, twelve thousand, one hundred twenty-one".