222101200102121 has 4 divisors (see below), whose sum is σ = 222119979280272. Its totient is φ = 222082420923972.

The previous prime is 222101200102079. The next prime is 222101200102129. The reversal of 222101200102121 is 121201002101222.

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-222101200102121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222101200102121.

It is not an unprimeable number, because it can be changed into a prime (222101200102129) 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, 9389571335 + ... + 9389594988.

It is an arithmetic number, because the mean of its divisors is an integer number (55529994820068).

Almost surely, 2^{222101200102121} is an apocalyptic number.

It is an amenable number.

222101200102121 is a deficient number, since it is larger than the sum of its proper divisors (18779178151).

222101200102121 is a wasteful number, since it uses less digits than its factorization.

222101200102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18779178150.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222101200102121 its reverse (121201002101222), we get a palindrome (343302202203343).

The spelling of 222101200102121 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred million, one hundred two thousand, one hundred twenty-one".