120021052225 has 6 divisors (see below), whose sum is σ = 148826104790. Its totient is φ = 96016841760.

The previous prime is 120021052189. The next prime is 120021052231. The reversal of 120021052225 is 522250120021.

It can be written as a sum of positive squares in 3 ways, for example, as 178382736 + 119842669489 = 13356^2 + 346183^2 .

It is not a de Polignac number, because 120021052225 - 2⁷ = 120021052097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120021052196 and 120021052205.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2400421020 + ... + 2400421069.

Almost surely, 2^120021052225 is an apocalyptic number.

It is an amenable number.

120021052225 is a deficient number, since it is larger than the sum of its proper divisors (28805052565).

120021052225 is an equidigital number, since it uses as much as digits as its factorization.

120021052225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800842099 (or 4800842094 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 120021052225 its reverse (522250120021), we get a palindrome (642271172246).

The spelling of 120021052225 in words is "one hundred twenty billion, twenty-one million, fifty-two thousand, two hundred twenty-five".