22002222220121 has 8 divisors (see below), whose sum is σ = 25848764566464. Its totient is φ = 18463403261520.

The previous prime is 22002222220103. The next prime is 22002222220169. The reversal of 22002222220121 is 12102222220022.

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 22002222220121 - 2¹⁰ = 22002222219097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22002222220093 and 22002222220102.

It is not an unprimeable number, because it can be changed into a prime (22002222220171) 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, 76930846781 + ... + 76930847066.

It is an arithmetic number, because the mean of its divisors is an integer number (3231095570808).

Almost surely, 2^{22002222220121} is an apocalyptic number.

It is an amenable number.

22002222220121 is a deficient number, since it is larger than the sum of its proper divisors (3846542346343).

22002222220121 is a wasteful number, since it uses less digits than its factorization.

22002222220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153861693871.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22002222220121 its reverse (12102222220022), we get a palindrome (34104444440143).

Subtracting from 22002222220121 its reverse (12102222220022), we obtain a palindrome (9900000000099).

The spelling of 22002222220121 in words is "twenty-two trillion, two billion, two hundred twenty-two million, two hundred twenty thousand, one hundred twenty-one".