121220133332 has 6 divisors (see below), whose sum is σ = 212135233338. Its totient is φ = 60610066664.

The previous prime is 121220133319. The next prime is 121220133347. The reversal of 121220133332 is 233331022121.

It can be written as a sum of positive squares in only one way, i.e., 81541086916 + 39679046416 = 285554^2 + 199196^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121220133298 and 121220133307.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 15152516663 + ... + 15152516670.

It is an arithmetic number, because the mean of its divisors is an integer number (35355872223).

Almost surely, 2^121220133332 is an apocalyptic number.

It is an amenable number.

121220133332 is a deficient number, since it is larger than the sum of its proper divisors (90915100006).

121220133332 is a wasteful number, since it uses less digits than its factorization.

121220133332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30305033337 (or 30305033335 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121220133332 its reverse (233331022121), we get a palindrome (354551155453).

The spelling of 121220133332 in words is "one hundred twenty-one billion, two hundred twenty million, one hundred thirty-three thousand, three hundred thirty-two".