120121220210210 has 64 divisors (see below), whose sum is σ = 226290152044800. Its totient is φ = 45822729292032.

The previous prime is 120121220210191. The next prime is 120121220210213. The reversal of 120121220210210 is 12012022121021.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120121220210213) 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, 940816256 + ... + 940943924.

It is an arithmetic number, because the mean of its divisors is an integer number (3535783625700).

Almost surely, 2^{120121220210210} is an apocalyptic number.

120121220210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120121220210210 is a deficient number, since it is larger than the sum of its proper divisors (106168931834590).

120121220210210 is a wasteful number, since it uses less digits than its factorization.

120121220210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139835.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120121220210210 its reverse (12012022121021), we get a palindrome (132133242331231).

The spelling of 120121220210210 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twenty million, two hundred ten thousand, two hundred ten".