121140120 has 32 divisors (see below), whose sum is σ = 363420720. Its totient is φ = 32304000.

The previous prime is 121140091. The next prime is 121140121. The reversal of 121140120 is 21041121.

It is a happy number.

It is a super-3 number, since 3×121140120³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 121140096 and 121140105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121140121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504631 + ... + 504870.

Almost surely, 2^121140120 is an apocalyptic number.

121140120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121140120 is an abundant number, since it is smaller than the sum of its proper divisors (242280600).

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

121140120 is a wasteful number, since it uses less digits than its factorization.

121140120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009515 (or 1009511 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 121140120 is about 11006.3672480978. The cubic root of 121140120 is about 494.7995923758.

Adding to 121140120 its reverse (21041121), we get a palindrome (142181241).

The spelling of 121140120 in words is "one hundred twenty-one million, one hundred forty thousand, one hundred twenty".