222101220000121 has 16 divisors (see below), whose sum is σ = 282797021767680. Its totient is φ = 169383632824080.

The previous prime is 222101220000083. The next prime is 222101220000131. The reversal of 222101220000121 is 121000022101222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222101220000121 - 2⁹ = 222101219999609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222101220000095 and 222101220000104.

It is not an unprimeable number, because it can be changed into a prime (222101220000131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30685437111 + ... + 30685444348.

It is an arithmetic number, because the mean of its divisors is an integer number (17674813860480).

Almost surely, 2^{222101220000121} is an apocalyptic number.

It is an amenable number.

222101220000121 is a deficient number, since it is larger than the sum of its proper divisors (60695801767559).

222101220000121 is a wasteful number, since it uses less digits than its factorization.

222101220000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61370881524.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222101220000121 its reverse (121000022101222), we get a palindrome (343101242101343).

The spelling of 222101220000121 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred twenty million, one hundred twenty-one", and thus it is an aban number.