120121332442 has 4 divisors (see below), whose sum is σ = 180181998666. Its totient is φ = 60060666220.

The previous prime is 120121332407. The next prime is 120121332449. The reversal of 120121332442 is 244233121021.

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., 111889581001 + 8231751441 = 334499^2 + 90729^2 .

It is not an unprimeable number, because it can be changed into a prime (120121332449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30030333109 + ... + 30030333112.

Almost surely, 2^120121332442 is an apocalyptic number.

120121332442 is a deficient number, since it is larger than the sum of its proper divisors (60060666224).

120121332442 is an equidigital number, since it uses as much as digits as its factorization.

120121332442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60060666223.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 120121332442 its reverse (244233121021), we get a palindrome (364354453463).

The spelling of 120121332442 in words is "one hundred twenty billion, one hundred twenty-one million, three hundred thirty-two thousand, four hundred forty-two".