120221345532 has 72 divisors (see below), whose sum is σ = 283515103872. Its totient is φ = 39649496000.

The previous prime is 120221345527. The next prime is 120221345533. The reversal of 120221345532 is 235543122021.

It is a self number, because there is not a number n which added to its sum of digits gives 120221345532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221345533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82853407 + ... + 82854857.

It is an arithmetic number, because the mean of its divisors is an integer number (3937709776).

Almost surely, 2^120221345532 is an apocalyptic number.

120221345532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120221345532 is an abundant number, since it is smaller than the sum of its proper divisors (163293758340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120221345532 is a wasteful number, since it uses less digits than its factorization.

120221345532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067 (or 1916 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 120221345532 its reverse (235543122021), we get a palindrome (355764467553).

The spelling of 120221345532 in words is "one hundred twenty billion, two hundred twenty-one million, three hundred forty-five thousand, five hundred thirty-two".