10221222021121 has 4 divisors (see below), whose sum is σ = 10550938860544. Its totient is φ = 9891505181700.

The previous prime is 10221222021061. The next prime is 10221222021151. The reversal of 10221222021121 is 12112022212201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10221222021121 - 2¹³ = 10221222012929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221222021151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164858419665 + ... + 164858419726.

It is an arithmetic number, because the mean of its divisors is an integer number (2637734715136).

Almost surely, 2^{10221222021121} is an apocalyptic number.

It is an amenable number.

10221222021121 is a deficient number, since it is larger than the sum of its proper divisors (329716839423).

10221222021121 is an equidigital number, since it uses as much as digits as its factorization.

10221222021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329716839422.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10221222021121 its reverse (12112022212201), we get a palindrome (22333244233322).

The spelling of 10221222021121 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-one".