222121110100201 has 32 divisors (see below), whose sum is σ = 254421956855808. Its totient is φ = 192102744960000.

The previous prime is 222121110100193. The next prime is 222121110100213. The reversal of 222121110100201 is 102001011121222.

It is a cyclic number.

It is not a de Polignac number, because 222121110100201 - 2³ = 222121110100193 is a prime.

It is a super-2 number, since 2×222121110100201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121110100301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2587363860 + ... + 2587449706.

It is an arithmetic number, because the mean of its divisors is an integer number (7950686151744).

Almost surely, 2^{222121110100201} is an apocalyptic number.

It is an amenable number.

222121110100201 is a deficient number, since it is larger than the sum of its proper divisors (32300846755607).

222121110100201 is a wasteful number, since it uses less digits than its factorization.

222121110100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138601.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222121110100201 its reverse (102001011121222), we get a palindrome (324122121221423).

The spelling of 222121110100201 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred ten million, one hundred thousand, two hundred one".