222101211210121 has 32 divisors (see below), whose sum is σ = 235447149168000. Its totient is φ = 209267619724800.

The previous prime is 222101211210103. The next prime is 222101211210287. The reversal of 222101211210121 is 121012112101222.

It is a happy number.

It is not a de Polignac number, because 222101211210121 - 2²⁹ = 222100674339209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222101211210721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339018130 + ... + 339672628.

It is an arithmetic number, because the mean of its divisors is an integer number (7357723411500).

Almost surely, 2^{222101211210121} is an apocalyptic number.

It is an amenable number.

222101211210121 is a deficient number, since it is larger than the sum of its proper divisors (13345937957879).

222101211210121 is a wasteful number, since it uses less digits than its factorization.

222101211210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657097.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222101211210121 its reverse (121012112101222), we get a palindrome (343113323311343).

The spelling of 222101211210121 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred eleven million, two hundred ten thousand, one hundred twenty-one".