10012021001 has 4 divisors (see below), whose sum is σ = 10038162432. Its totient is φ = 9985879572.

The previous prime is 10012020979. The next prime is 10012021013.

10012021001 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10012021001 - 2¹⁰ = 10012019977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10012021001.

It is not an unprimeable number, because it can be changed into a prime (10012021301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13070141 + ... + 13070906.

It is an arithmetic number, because the mean of its divisors is an integer number (2509540608).

Almost surely, 2^10012021001 is an apocalyptic number.

It is an amenable number.

10012021001 is a deficient number, since it is larger than the sum of its proper divisors (26141431).

10012021001 is an equidigital number, since it uses as much as digits as its factorization.

10012021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26141430.

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

It can be divided in two parts, 100120 and 21001, that added together give a palindrome (121121).

The spelling of 10012021001 in words is "ten billion, twelve million, twenty-one thousand, one".