121219032200 has 108 divisors (see below), whose sum is σ = 327941249535. Its totient is φ = 41548993920.

The previous prime is 121219032107. The next prime is 121219032211. The reversal of 121219032200 is 2230912121.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 107385979204 + 13833052996 = 327698^2 + 117614^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=246190.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 34464842 + ... + 34468358.

Almost surely, 2^121219032200 is an apocalyptic number.

121219032200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121219032200

121219032200 is an abundant number, since it is smaller than the sum of its proper divisors (206722217335).

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

121219032200 is an frugal number, since it uses more digits than its factorization.

121219032200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7064 (or 3531 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 121219032200 its reverse (2230912121), we get a palindrome (123449944321).

The spelling of 121219032200 in words is "one hundred twenty-one billion, two hundred nineteen million, thirty-two thousand, two hundred".