121120012212 has 24 divisors (see below), whose sum is σ = 284510100000. Its totient is φ = 40102374816.

The previous prime is 121120012193. The next prime is 121120012229. The reversal of 121120012212 is 212210021121.

It is a junction number, because it is equal to n+sod(n) for n = 121120012191 and 121120012200.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 33868462 + ... + 33872037.

It is an arithmetic number, because the mean of its divisors is an integer number (11854587500).

Almost surely, 2^121120012212 is an apocalyptic number.

121120012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121120012212 is an abundant number, since it is smaller than the sum of its proper divisors (163390087788).

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

121120012212 is a wasteful number, since it uses less digits than its factorization.

121120012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67740655 (or 67740653 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121120012212 its reverse (212210021121), we get a palindrome (333330033333).

The spelling of 121120012212 in words is "one hundred twenty-one billion, one hundred twenty million, twelve thousand, two hundred twelve".