120121210 has 32 divisors (see below), whose sum is σ = 236742912. Its totient is φ = 43519680.

The previous prime is 120121207. The next prime is 120121229. The reversal of 120121210 is 12121021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30367 + ... + 34093.

It is an arithmetic number, because the mean of its divisors is an integer number (7398216).

Almost surely, 2^120121210 is an apocalyptic number.

120121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120121210 is a deficient number, since it is larger than the sum of its proper divisors (116621702).

120121210 is a wasteful number, since it uses less digits than its factorization.

120121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038.

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

The square root of 120121210 is about 10959.9822080148. The cubic root of 120121210 is about 493.4084309628.

Adding to 120121210 its reverse (12121021), we get a palindrome (132242231).

The spelling of 120121210 in words is "one hundred twenty million, one hundred twenty-one thousand, two hundred ten".