120021121124 has 12 divisors (see below), whose sum is σ = 210068943084. Its totient is φ = 60001423104.

The previous prime is 120021121123. The next prime is 120021121153. The reversal of 120021121124 is 421121120021.

It can be written as a sum of positive squares in 2 ways, for example, as 64626791524 + 55394329600 = 254218^2 + 235360^2 .

It is not an unprimeable number, because it can be changed into a prime (120021121123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2254769 + ... + 2307384.

It is an arithmetic number, because the mean of its divisors is an integer number (17505745257).

Almost surely, 2^120021121124 is an apocalyptic number.

It is an amenable number.

120021121124 is a deficient number, since it is larger than the sum of its proper divisors (90047821960).

120021121124 is a wasteful number, since it uses less digits than its factorization.

120021121124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568734 (or 4568732 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120021121124 its reverse (421121120021), we get a palindrome (541142241145).

The spelling of 120021121124 in words is "one hundred twenty billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-four".