121200212300 has 36 divisors (see below), whose sum is σ = 263360513640. Its totient is φ = 48414453120.

The previous prime is 121200212293. The next prime is 121200212323. The reversal of 121200212300 is 3212002121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 746129 + ... + 893928.

Almost surely, 2^121200212300 is an apocalyptic number.

121200212300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121200212300 is an abundant number, since it is smaller than the sum of its proper divisors (142160301340).

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

121200212300 is a wasteful number, since it uses less digits than its factorization.

121200212300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640810 (or 1640803 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 121200212300 its reverse (3212002121), we get a palindrome (124412214421).

The spelling of 121200212300 in words is "one hundred twenty-one billion, two hundred million, two hundred twelve thousand, three hundred".