120121652 has 24 divisors (see below), whose sum is σ = 247994880. Its totient is φ = 49819680.

The previous prime is 120121637. The next prime is 120121657. The reversal of 120121652 is 256121021.

It is a super-2 number, since 2×120121652² = 28858422558418208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68327 + ... + 70062.

It is an arithmetic number, because the mean of its divisors is an integer number (10333120).

Almost surely, 2^120121652 is an apocalyptic number.

It is an amenable number.

120121652 is an abundant number, since it is smaller than the sum of its proper divisors (127873228).

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

120121652 is a wasteful number, since it uses less digits than its factorization.

120121652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138431 (or 138429 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 120121652 is about 10960.0023722625. The cubic root of 120121652 is about 493.4090361467.

Adding to 120121652 its reverse (256121021), we get a palindrome (376242673).

The spelling of 120121652 in words is "one hundred twenty million, one hundred twenty-one thousand, six hundred fifty-two".