10021112021 has 8 divisors (see below), whose sum is σ = 10067827200. Its totient is φ = 9974437200.

The previous prime is 10021111981. The next prime is 10021112027. The reversal of 10021112021 is 12021112001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021112021 is a prime.

It is a super-2 number, since 2×10021112021² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10021111993 and 10021112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021112027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562196 + ... + 579746.

It is an arithmetic number, because the mean of its divisors is an integer number (1258478400).

Almost surely, 2^10021112021 is an apocalyptic number.

It is an amenable number.

10021112021 is a deficient number, since it is larger than the sum of its proper divisors (46715179).

10021112021 is a wasteful number, since it uses less digits than its factorization.

10021112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20179.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10021112021 its reverse (12021112001), we get a palindrome (22042224022).

The spelling of 10021112021 in words is "ten billion, twenty-one million, one hundred twelve thousand, twenty-one".