121220020002200 has 96 divisors (see below), whose sum is σ = 322173194104800. Its totient is φ = 41551564707840.

The previous prime is 121220020002197. The next prime is 121220020002217. The reversal of 121220020002200 is 2200020022121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3910415 + ... + 16054014.

It is an arithmetic number, because the mean of its divisors is an integer number (3355970771925).

Almost surely, 2^{121220020002200} is an apocalyptic number.

121220020002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121220020002200 is an abundant number, since it is smaller than the sum of its proper divisors (200953174102600).

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

121220020002200 is a wasteful number, since it uses less digits than its factorization.

121220020002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19968789 (or 19968780 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 121220020002200 its reverse (2200020022121), we get a palindrome (123420040024321).

The spelling of 121220020002200 in words is "one hundred twenty-one trillion, two hundred twenty billion, twenty million, two thousand, two hundred".