121220020200112 has 40 divisors (see below), whose sum is σ = 248776561897056. Its totient is φ = 57022405825536.

The previous prime is 121220020200101. The next prime is 121220020200113. The reversal of 121220020200112 is 211002020022121.

It is a happy number.

121220020200112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121220020200112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (121220020200113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86449948 + ... + 87840955.

Almost surely, 2^{121220020200112} is an apocalyptic number.

It is an amenable number.

121220020200112 is an abundant number, since it is smaller than the sum of its proper divisors (127556541696944).

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

121220020200112 is a wasteful number, since it uses less digits than its factorization.

121220020200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174293485 (or 174293479 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121220020200112 its reverse (211002020022121), we get a palindrome (332222040222233).

The spelling of 121220020200112 in words is "one hundred twenty-one trillion, two hundred twenty billion, twenty million, two hundred thousand, one hundred twelve".