121100200212 has 24 divisors (see below), whose sum is σ = 297439088800. Its totient is φ = 38242168416.

The previous prime is 121100200187. The next prime is 121100200241. The reversal of 121100200212 is 212002001121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265570387 + ... + 265570842.

Almost surely, 2^121100200212 is an apocalyptic number.

121100200212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121100200212 is an abundant number, since it is smaller than the sum of its proper divisors (176338888588).

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

121100200212 is a wasteful number, since it uses less digits than its factorization.

121100200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531141255 (or 531141253 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121100200212 its reverse (212002001121), we get a palindrome (333102201333).

The spelling of 121100200212 in words is "one hundred twenty-one billion, one hundred million, two hundred thousand, two hundred twelve".