120000112222121 has 16 divisors (see below), whose sum is σ = 129797418571920. Its totient is φ = 110525877934080.

The previous prime is 120000112222117. The next prime is 120000112222141. The reversal of 120000112222121 is 121222211000021.

It can be written as a sum of positive squares in 8 ways, for example, as 3388968037225 + 116611144184896 = 1840915^2 + 10798664^2 .

It is a cyclic number.

It is not a de Polignac number, because 120000112222121 - 2² = 120000112222117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120000112222121.

It is not an unprimeable number, because it can be changed into a prime (120000112222141) 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, 293497556 + ... + 293906133.

It is an arithmetic number, because the mean of its divisors is an integer number (8112338660745).

Almost surely, 2^{120000112222121} is an apocalyptic number.

It is an amenable number.

120000112222121 is a deficient number, since it is larger than the sum of its proper divisors (9797306349799).

120000112222121 is a wasteful number, since it uses less digits than its factorization.

120000112222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587403964.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120000112222121 its reverse (121222211000021), we get a palindrome (241222323222142).

The spelling of 120000112222121 in words is "one hundred twenty trillion, one hundred twelve million, two hundred twenty-two thousand, one hundred twenty-one".