121000001200 has 60 divisors (see below), whose sum is σ = 313064247328. Its totient is φ = 44676921600.

The previous prime is 121000001093. The next prime is 121000001201. The reversal of 121000001200 is 2100000121.

It is not an unprimeable number, because it can be changed into a prime (121000001201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11629416 + ... + 11639815.

Almost surely, 2^121000001200 is an apocalyptic number.

121000001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121000001200 is an abundant number, since it is smaller than the sum of its proper divisors (192064246128).

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

121000001200 is a wasteful number, since it uses less digits than its factorization.

121000001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23269262 (or 23269251 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 121000001200 its reverse (2100000121), we get a palindrome (123100001321).

The spelling of 121000001200 in words is "one hundred twenty-one billion, one thousand, two hundred".