120020121210 has 64 divisors (see below), whose sum is σ = 332718897024. Its totient is φ = 27384268800.

The previous prime is 120020121157. The next prime is 120020121211. The reversal of 120020121210 is 12121020021.

It is not an unprimeable number, because it can be changed into a prime (120020121211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10691371 + ... + 10702590.

It is an arithmetic number, because the mean of its divisors is an integer number (5198732766).

Almost surely, 2^120020121210 is an apocalyptic number.

120020121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120020121210 is an abundant number, since it is smaller than the sum of its proper divisors (212698775814).

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

120020121210 is a wasteful number, since it uses less digits than its factorization.

120020121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21393999.

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

Adding to 120020121210 its reverse (12121020021), we get a palindrome (132141141231).

The spelling of 120020121210 in words is "one hundred twenty billion, twenty million, one hundred twenty-one thousand, two hundred ten".