120121012 has 24 divisors (see below), whose sum is σ = 230604192. Its totient is φ = 54295200.

The previous prime is 120121009. The next prime is 120121013. The reversal of 120121012 is 210121021.

It is a self number, because there is not a number n which added to its sum of digits gives 120121012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121013) 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, 423 + ... + 15505.

It is an arithmetic number, because the mean of its divisors is an integer number (9608508).

Almost surely, 2^120121012 is an apocalyptic number.

It is an amenable number.

120121012 is a deficient number, since it is larger than the sum of its proper divisors (110483180).

120121012 is a wasteful number, since it uses less digits than its factorization.

120121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15279 (or 15277 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 120121012 is about 10959.9731751497. The cubic root of 120121012 is about 493.4081598618.

Adding to 120121012 its reverse (210121021), we get a palindrome (330242033).

Subtracting 120121012 from its reverse (210121021), we obtain a palindrome (90000009).

The spelling of 120121012 in words is "one hundred twenty million, one hundred twenty-one thousand, twelve".