10021110001021 has 64 divisors (see below), whose sum is σ = 12710167142400. Its totient is φ = 7702966377216.

The previous prime is 10021110001003. The next prime is 10021110001039. The reversal of 10021110001021 is 12010001112001.

It is an interprime number because it is at equal distance from previous prime (10021110001003) and next prime (10021110001039).

It is a cyclic number.

It is not a de Polignac number, because 10021110001021 - 2¹¹ = 10021109998973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10021110000989 and 10021110001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021110002021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 515771335 + ... + 515790763.

It is an arithmetic number, because the mean of its divisors is an integer number (198596361600).

Almost surely, 2^{10021110001021} is an apocalyptic number.

It is an amenable number.

10021110001021 is a deficient number, since it is larger than the sum of its proper divisors (2689057141379).

10021110001021 is a wasteful number, since it uses less digits than its factorization.

10021110001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21218.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10021110001021 its reverse (12010001112001), we get a palindrome (22031111113022).

The spelling of 10021110001021 in words is "ten trillion, twenty-one billion, one hundred ten million, one thousand, twenty-one".