120511212146 has 32 divisors (see below), whose sum is σ = 196118072640. Its totient is φ = 55208441664.

The previous prime is 120511212139. The next prime is 120511212169. The reversal of 120511212146 is 641212115021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 in 15 ways as a sum of consecutive naturals, for example, 2762621 + ... + 2805903.

It is an arithmetic number, because the mean of its divisors is an integer number (6128689770).

Almost surely, 2^120511212146 is an apocalyptic number.

120511212146 is a deficient number, since it is larger than the sum of its proper divisors (75606860494).

120511212146 is a wasteful number, since it uses less digits than its factorization.

120511212146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44090.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 120511212146 its reverse (641212115021), we get a palindrome (761723327167).

The spelling of 120511212146 in words is "one hundred twenty billion, five hundred eleven million, two hundred twelve thousand, one hundred forty-six".