222121101102201 has 96 divisors (see below), whose sum is σ = 391145160107520. Its totient is φ = 118768761216000.

The previous prime is 222121101102193. The next prime is 222121101102221. The reversal of 222121101102201 is 102201101121222.

222121101102201 is a `hidden beast` number, since 2 + 221 + 2 + 110 + 110 + 220 + 1 = 666.

It is not a de Polignac number, because 222121101102201 - 2³ = 222121101102193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222121101102221) 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 95 ways as a sum of consecutive naturals, for example, 1492111 + ... + 21129803.

It is an arithmetic number, because the mean of its divisors is an integer number (4074428751120).

Almost surely, 2^{222121101102201} is an apocalyptic number.

222121101102201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222121101102201 is a deficient number, since it is larger than the sum of its proper divisors (169024059005319).

222121101102201 is a wasteful number, since it uses less digits than its factorization.

222121101102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19637927 (or 19637924 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222121101102201 its reverse (102201101121222), we get a palindrome (324322202223423).

The spelling of 222121101102201 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred one million, one hundred two thousand, two hundred one".