22012100100121 has 4 divisors (see below), whose sum is σ = 22104200937600. Its totient is φ = 21919999262644.

The previous prime is 22012100100077. The next prime is 22012100100167. The reversal of 22012100100121 is 12100100121022.

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 a de Polignac number, because none of the positive numbers 2^k-22012100100121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012100100191) 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, 46050418381 + ... + 46050418858.

It is an arithmetic number, because the mean of its divisors is an integer number (5526050234400).

Almost surely, 2^{22012100100121} is an apocalyptic number.

It is an amenable number.

22012100100121 is a deficient number, since it is larger than the sum of its proper divisors (92100837479).

22012100100121 is an equidigital number, since it uses as much as digits as its factorization.

22012100100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92100837478.

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

Adding to 22012100100121 its reverse (12100100121022), we get a palindrome (34112200221143).

The spelling of 22012100100121 in words is "twenty-two trillion, twelve billion, one hundred million, one hundred thousand, one hundred twenty-one".