120221075745 has 32 divisors (see below), whose sum is σ = 226298499840. Its totient is φ = 60346264320.

The previous prime is 120221075743. The next prime is 120221075761. The reversal of 120221075745 is 547570122021.

It is not a de Polignac number, because 120221075745 - 2¹ = 120221075743 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120221075743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26189661 + ... + 26194250.

It is an arithmetic number, because the mean of its divisors is an integer number (7071828120).

Almost surely, 2^120221075745 is an apocalyptic number.

120221075745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120221075745 is a deficient number, since it is larger than the sum of its proper divisors (106077424095).

120221075745 is a wasteful number, since it uses less digits than its factorization.

120221075745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52383942 (or 52383936 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

Adding to 120221075745 its reverse (547570122021), we get a palindrome (667791197766).

The spelling of 120221075745 in words is "one hundred twenty billion, two hundred twenty-one million, seventy-five thousand, seven hundred forty-five".