121120012210 has 32 divisors (see below), whose sum is σ = 223604105472. Its totient is φ = 47211440640.

The previous prime is 121120012193. The next prime is 121120012229. The reversal of 121120012210 is 12210021121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141439 + ... + 512098.

It is an arithmetic number, because the mean of its divisors is an integer number (6987628296).

Almost surely, 2^121120012210 is an apocalyptic number.

121120012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121120012210 is a deficient number, since it is larger than the sum of its proper divisors (102484093262).

121120012210 is a wasteful number, since it uses less digits than its factorization.

121120012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654018.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121120012210 its reverse (12210021121), we get a palindrome (133330033331).

The spelling of 121120012210 in words is "one hundred twenty-one billion, one hundred twenty million, twelve thousand, two hundred ten".