10222222020121 has 4 divisors (see below), whose sum is σ = 10237411057972. Its totient is φ = 10207032982272.

The previous prime is 10222222020107. The next prime is 10222222020139. The reversal of 10222222020121 is 12102022222201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2426600640025 + 7795621380096 = 1557755^2 + 2792064^2 .

It is a cyclic number.

It is not a de Polignac number, because 10222222020121 - 2⁷ = 10222222019993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10222222020161) 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, 7594517916 + ... + 7594519261.

It is an arithmetic number, because the mean of its divisors is an integer number (2559352764493).

Almost surely, 2^{10222222020121} is an apocalyptic number.

It is an amenable number.

10222222020121 is a deficient number, since it is larger than the sum of its proper divisors (15189037851).

10222222020121 is an equidigital number, since it uses as much as digits as its factorization.

10222222020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15189037850.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10222222020121 its reverse (12102022222201), we get a palindrome (22324244242322).

The spelling of 10222222020121 in words is "ten trillion, two hundred twenty-two billion, two hundred twenty-two million, twenty thousand, one hundred twenty-one".