10021021124 has 6 divisors (see below), whose sum is σ = 17536786974. Its totient is φ = 5010510560.

The previous prime is 10021021123. The next prime is 10021021169. The reversal of 10021021124 is 42112012001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9478969600 + 542051524 = 97360^2 + 23282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10021021099 and 10021021108.

It is not an unprimeable number, because it can be changed into a prime (10021021123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252627637 + ... + 1252627644.

It is an arithmetic number, because the mean of its divisors is an integer number (2922797829).

Almost surely, 2^10021021124 is an apocalyptic number.

It is an amenable number.

10021021124 is a deficient number, since it is larger than the sum of its proper divisors (7515765850).

10021021124 is a wasteful number, since it uses less digits than its factorization.

10021021124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505255285 (or 2505255283 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10021021124 its reverse (42112012001), we get a palindrome (52133033125).

The spelling of 10021021124 in words is "ten billion, twenty-one million, twenty-one thousand, one hundred twenty-four".