120511155122 has 4 divisors (see below), whose sum is σ = 180766732686. Its totient is φ = 60255577560.

The previous prime is 120511155113. The next prime is 120511155131. The reversal of 120511155122 is 221551115021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221551115021 = 165037 ⋅1342433.

It is an interprime number because it is at equal distance from previous prime (120511155113) and next prime (120511155131).

It can be written as a sum of positive squares in only one way, i.e., 60618871681 + 59892283441 = 246209^2 + 244729^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120511155091 and 120511155100.

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, 30127788779 + ... + 30127788782.

Almost surely, 2^120511155122 is an apocalyptic number.

120511155122 is a deficient number, since it is larger than the sum of its proper divisors (60255577564).

120511155122 is an equidigital number, since it uses as much as digits as its factorization.

120511155122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60255577563.

The product of its (nonzero) digits is 1000, while the sum is 26.

The spelling of 120511155122 in words is "one hundred twenty billion, five hundred eleven million, one hundred fifty-five thousand, one hundred twenty-two".