121221220103332 has 12 divisors (see below), whose sum is σ = 212140210426956. Its totient is φ = 60609731409920.

The previous prime is 121221220103293. The next prime is 121221220103353. The reversal of 121221220103332 is 233301022122121.

It can be written as a sum of positive squares in 2 ways, for example, as 60810925074496 + 60410295028836 = 7798136^2 + 7772406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121221220103297 and 121221220103306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219349969 + ... + 219901912.

It is an arithmetic number, because the mean of its divisors is an integer number (17678350868913).

Almost surely, 2^{121221220103332} is an apocalyptic number.

It is an amenable number.

121221220103332 is a deficient number, since it is larger than the sum of its proper divisors (90918990323624).

121221220103332 is a wasteful number, since it uses less digits than its factorization.

121221220103332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439320878 (or 439320876 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121221220103332 its reverse (233301022122121), we get a palindrome (354522242225453).

The spelling of 121221220103332 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred twenty million, one hundred three thousand, three hundred thirty-two".