121220132331322 has 4 divisors (see below), whose sum is σ = 181830198496986. Its totient is φ = 60610066165660.

The previous prime is 121220132331281. The next prime is 121220132331359. The reversal of 121220132331322 is 223133231022121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 81143901856081 + 40076230475241 = 9007991^2 + 6330579^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30305033082829 + ... + 30305033082832.

Almost surely, 2^{121220132331322} is an apocalyptic number.

121220132331322 is a deficient number, since it is larger than the sum of its proper divisors (60610066165664).

121220132331322 is an equidigital number, since it uses as much as digits as its factorization.

121220132331322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60610066165663.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 121220132331322 its reverse (223133231022121), we get a palindrome (344353363353443).

The spelling of 121220132331322 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred thirty-two million, three hundred thirty-one thousand, three hundred twenty-two".