120221345534 has 16 divisors (see below), whose sum is σ = 180565944000. Its totient is φ = 60032738304.

The previous prime is 120221345533. The next prime is 120221345537. The reversal of 120221345534 is 435543122021.

It is a self number, because there is not a number n which added to its sum of digits gives 120221345534.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7674542 + ... + 7690190.

It is an arithmetic number, because the mean of its divisors is an integer number (11285371500).

Almost surely, 2^120221345534 is an apocalyptic number.

120221345534 is a deficient number, since it is larger than the sum of its proper divisors (60344598466).

120221345534 is a wasteful number, since it uses less digits than its factorization.

120221345534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20387.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 120221345534 its reverse (435543122021), we get a palindrome (555764467555).

The spelling of 120221345534 in words is "one hundred twenty billion, two hundred twenty-one million, three hundred forty-five thousand, five hundred thirty-four".