120619252721 has 16 divisors (see below), whose sum is σ = 134565935040. Its totient is φ = 107184841920.

The previous prime is 120619252717. The next prime is 120619252723. The reversal of 120619252721 is 127252916021.

It is a cyclic number.

It is not a de Polignac number, because 120619252721 - 2² = 120619252717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120619252723) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 227735 + ... + 541388.

It is an arithmetic number, because the mean of its divisors is an integer number (8410370940).

Almost surely, 2^120619252721 is an apocalyptic number.

120619252721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120619252721 is a deficient number, since it is larger than the sum of its proper divisors (13946682319).

120619252721 is a wasteful number, since it uses less digits than its factorization.

120619252721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769456.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 120619252721 in words is "one hundred twenty billion, six hundred nineteen million, two hundred fifty-two thousand, seven hundred twenty-one".