22222120121101 has 4 divisors (see below), whose sum is σ = 22250002330332. Its totient is φ = 22194237911872.

The previous prime is 22222120121023. The next prime is 22222120121137. The reversal of 22222120121101 is 10112102122222.

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 6654155589225 + 15567964531876 = 2579565^2 + 3945626^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222120121101 - 2⁷ = 22222120120973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222120128101) 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, 13941103420 + ... + 13941105013.

It is an arithmetic number, because the mean of its divisors is an integer number (5562500582583).

Almost surely, 2^{22222120121101} is an apocalyptic number.

It is an amenable number.

22222120121101 is a deficient number, since it is larger than the sum of its proper divisors (27882209231).

22222120121101 is an equidigital number, since it uses as much as digits as its factorization.

22222120121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27882209230.

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

Adding to 22222120121101 its reverse (10112102122222), we get a palindrome (32334222243323).

The spelling of 22222120121101 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, one hundred one".