121220002212 has 48 divisors (see below), whose sum is σ = 299861893632. Its totient is φ = 38046378240.

The previous prime is 121220002207. The next prime is 121220002213. The reversal of 121220002212 is 212200022121.

It is a junction number, because it is equal to n+sod(n) for n = 121220002191 and 121220002200.

It is not an unprimeable number, because it can be changed into a prime (121220002213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4389753 + ... + 4417280.

It is an arithmetic number, because the mean of its divisors is an integer number (6247122784).

Almost surely, 2^121220002212 is an apocalyptic number.

121220002212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121220002212 is an abundant number, since it is smaller than the sum of its proper divisors (178641891420).

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

121220002212 is a wasteful number, since it uses less digits than its factorization.

121220002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807108 (or 8807106 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121220002212 its reverse (212200022121), we get a palindrome (333420024333).

The spelling of 121220002212 in words is "one hundred twenty-one billion, two hundred twenty million, two thousand, two hundred twelve".