120040121412 has 18 divisors (see below), whose sum is σ = 303434751438. Its totient is φ = 40013373792.

The previous prime is 120040121407. The next prime is 120040121417. The reversal of 120040121412 is 214121040021.

120040121412 is a `hidden beast` number, since 1 + 200 + 40 + 12 + 1 + 412 = 666.

It is an interprime number because it is at equal distance from previous prime (120040121407) and next prime (120040121417).

It can be written as a sum of positive squares in only one way, i.e., 76189248576 + 43850872836 = 276024^2 + 209406^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (120040121417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1667223873 + ... + 1667223944.

It is an arithmetic number, because the mean of its divisors is an integer number (16857486191).

Almost surely, 2^120040121412 is an apocalyptic number.

120040121412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120040121412 is an abundant number, since it is smaller than the sum of its proper divisors (183394630026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120040121412 is a wasteful number, since it uses less digits than its factorization.

120040121412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334447827 (or 3334447822 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120040121412 its reverse (214121040021), we get a palindrome (334161161433).

The spelling of 120040121412 in words is "one hundred twenty billion, forty million, one hundred twenty-one thousand, four hundred twelve".