10121020010 has 16 divisors (see below), whose sum is σ = 18846037800. Its totient is φ = 3908807616.

The previous prime is 10121020009. The next prime is 10121020043. The reversal of 10121020010 is 1002012101.

It can be written as a sum of positive squares in 4 ways, for example, as 5928846001 + 4192174009 = 76999^2 + 64747^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10121020010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17449745 + ... + 17450324.

Almost surely, 2^10121020010 is an apocalyptic number.

10121020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10121020010 is a deficient number, since it is larger than the sum of its proper divisors (8725017790).

10121020010 is a wasteful number, since it uses less digits than its factorization.

10121020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34900105.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10121020010 its reverse (1002012101), we get a palindrome (11123032111).

The spelling of 10121020010 in words is "ten billion, one hundred twenty-one million, twenty thousand, ten".