121200333221 has 8 divisors (see below), whose sum is σ = 132221627424. Its totient is φ = 110179552720.

The previous prime is 121200333217. The next prime is 121200333229. The reversal of 121200333221 is 122333002121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121200333221 - 2² = 121200333217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121200333193 and 121200333202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121200333229) 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, 497606 + ... + 700008.

It is an arithmetic number, because the mean of its divisors is an integer number (16527703428).

Almost surely, 2^121200333221 is an apocalyptic number.

121200333221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121200333221 is a deficient number, since it is larger than the sum of its proper divisors (11021294203).

121200333221 is a wasteful number, since it uses less digits than its factorization.

121200333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256851.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121200333221 its reverse (122333002121), we get a palindrome (243533335342).

The spelling of 121200333221 in words is "one hundred twenty-one billion, two hundred million, three hundred thirty-three thousand, two hundred twenty-one".