10021211220021 has 8 divisors (see below), whose sum is σ = 13430846126400. Its totient is φ = 6646191896832.

The previous prime is 10021211220017. The next prime is 10021211220067. The reversal of 10021211220021 is 12002211212001.

10021211220021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10021211220021 - 2² = 10021211220017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021211220001) 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, 8653895121 + ... + 8653896278.

It is an arithmetic number, because the mean of its divisors is an integer number (1678855765800).

Almost surely, 2^{10021211220021} is an apocalyptic number.

It is an amenable number.

10021211220021 is a deficient number, since it is larger than the sum of its proper divisors (3409634906379).

10021211220021 is a wasteful number, since it uses less digits than its factorization.

10021211220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17307791595.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10021211220021 its reverse (12002211212001), we get a palindrome (22023422432022).

The spelling of 10021211220021 in words is "ten trillion, twenty-one billion, two hundred eleven million, two hundred twenty thousand, twenty-one".