10022221222121 has 4 divisors (see below), whose sum is σ = 10054447014144. Its totient is φ = 9989995430100.

The previous prime is 10022221222081. The next prime is 10022221222159. The reversal of 10022221222121 is 12122212222001.

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 10022221222121 - 2¹⁰ = 10022221221097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10022221222093 and 10022221222102.

It is not an unprimeable number, because it can be changed into a prime (10022221222721) 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, 16112895545 + ... + 16112896166.

It is an arithmetic number, because the mean of its divisors is an integer number (2513611753536).

Almost surely, 2^{10022221222121} is an apocalyptic number.

It is an amenable number.

10022221222121 is a deficient number, since it is larger than the sum of its proper divisors (32225792023).

10022221222121 is an equidigital number, since it uses as much as digits as its factorization.

10022221222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32225792022.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 10022221222121 its reverse (12122212222001), we get a palindrome (22144433444122).

The spelling of 10022221222121 in words is "ten trillion, twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-one".