112211210121 has 32 divisors (see below), whose sum is σ = 151091635200. Its totient is φ = 74074245120.

The previous prime is 112211210119. The next prime is 112211210131. The reversal of 112211210121 is 121012112211.

It is a happy number.

It is not a de Polignac number, because 112211210121 - 2¹ = 112211210119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112211210121.

It is not an unprimeable number, because it can be changed into a prime (112211210131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158266515 + ... + 158267223.

It is an arithmetic number, because the mean of its divisors is an integer number (4721613600).

Almost surely, 2^112211210121 is an apocalyptic number.

It is an amenable number.

112211210121 is a deficient number, since it is larger than the sum of its proper divisors (38880425079).

112211210121 is a wasteful number, since it uses less digits than its factorization.

112211210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 112211210121 its reverse (121012112211), we get a palindrome (233223322332).

The spelling of 112211210121 in words is "one hundred twelve billion, two hundred eleven million, two hundred ten thousand, one hundred twenty-one".