10012201028 has 6 divisors (see below), whose sum is σ = 17521351806. Its totient is φ = 5006100512.

The previous prime is 10012201021. The next prime is 10012201033. The reversal of 10012201028 is 82010221001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9513661444 + 498539584 = 97538^2 + 22328^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10012200997 and 10012201015.

It is not an unprimeable number, because it can be changed into a prime (10012201021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251525125 + ... + 1251525132.

It is an arithmetic number, because the mean of its divisors is an integer number (2920225301).

Almost surely, 2^10012201028 is an apocalyptic number.

It is an amenable number.

10012201028 is a deficient number, since it is larger than the sum of its proper divisors (7509150778).

10012201028 is a wasteful number, since it uses less digits than its factorization.

10012201028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503050261 (or 2503050259 counting only the distinct ones).

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

Adding to 10012201028 its reverse (82010221001), we get a palindrome (92022422029).

The spelling of 10012201028 in words is "ten billion, twelve million, two hundred one thousand, twenty-eight".