10021211200021 has 16 divisors (see below), whose sum is σ = 11482865130240. Its totient is φ = 8567075923200.

The previous prime is 10021211200003. The next prime is 10021211200027. The reversal of 10021211200021 is 12000211212001.

It is a cyclic number.

It is not a de Polignac number, because 10021211200021 - 2¹¹ = 10021211197973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10021211199974 and 10021211200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021211200027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21748000 + ... + 22204006.

It is an arithmetic number, because the mean of its divisors is an integer number (717679070640).

Almost surely, 2^{10021211200021} is an apocalyptic number.

It is an amenable number.

10021211200021 is a deficient number, since it is larger than the sum of its proper divisors (1461653930219).

10021211200021 is an equidigital number, since it uses as much as digits as its factorization.

10021211200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464244.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10021211200021 its reverse (12000211212001), we get a palindrome (22021422412022).

The spelling of 10021211200021 in words is "ten trillion, twenty-one billion, two hundred eleven million, two hundred thousand, twenty-one".