120121322642 has 4 divisors (see below), whose sum is σ = 180181983966. Its totient is φ = 60060661320.

The previous prime is 120121322593. The next prime is 120121322653. The reversal of 120121322642 is 246223121021.

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., 62141016961 + 57980305681 = 249281^2 + 240791^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30030330659 + ... + 30030330662.

Almost surely, 2^120121322642 is an apocalyptic number.

120121322642 is a deficient number, since it is larger than the sum of its proper divisors (60060661324).

120121322642 is an equidigital number, since it uses as much as digits as its factorization.

120121322642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60060661323.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 120121322642 its reverse (246223121021), we get a palindrome (366344443663).

The spelling of 120121322642 in words is "one hundred twenty billion, one hundred twenty-one million, three hundred twenty-two thousand, six hundred forty-two".