22012110121 has 4 divisors (see below), whose sum is σ = 22225820032. Its totient is φ = 21798400212.

The previous prime is 22012110097. The next prime is 22012110137. The reversal of 22012110121 is 12101121022.

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 22012110121 - 2¹³ = 22012101929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012110161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106854801 + ... + 106855006.

It is an arithmetic number, because the mean of its divisors is an integer number (5556455008).

Almost surely, 2^22012110121 is an apocalyptic number.

It is an amenable number.

22012110121 is a deficient number, since it is larger than the sum of its proper divisors (213709911).

22012110121 is a wasteful number, since it uses less digits than its factorization.

22012110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213709910.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22012110121 its reverse (12101121022), we get a palindrome (34113231143).

The spelling of 22012110121 in words is "twenty-two billion, twelve million, one hundred ten thousand, one hundred twenty-one".