120112101122221 has 32 divisors (see below), whose sum is σ = 130420142012160. Its totient is φ = 109961436017664.

The previous prime is 120112101122219. The next prime is 120112101122261. The reversal of 120112101122221 is 122221101211021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120112101122221 - 2¹ = 120112101122219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112101122261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 786878335 + ... + 787030963.

It is an arithmetic number, because the mean of its divisors is an integer number (4075629437880).

Almost surely, 2^{120112101122221} is an apocalyptic number.

It is an amenable number.

120112101122221 is a deficient number, since it is larger than the sum of its proper divisors (10308040889939).

120112101122221 is a wasteful number, since it uses less digits than its factorization.

120112101122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153925.

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

Adding to 120112101122221 its reverse (122221101211021), we get a palindrome (242333202333242).

The spelling of 120112101122221 in words is "one hundred twenty trillion, one hundred twelve billion, one hundred one million, one hundred twenty-two thousand, two hundred twenty-one".