10021221034421 has 8 divisors (see below), whose sum is σ = 10051093875264. Its totient is φ = 9991349000640.

The previous prime is 10021221034327. The next prime is 10021221034453. The reversal of 10021221034421 is 12443012212001.

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-10021221034421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021221034621) 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, 32593616 + ... + 32899638.

It is an arithmetic number, because the mean of its divisors is an integer number (1256386734408).

Almost surely, 2^{10021221034421} is an apocalyptic number.

It is an amenable number.

10021221034421 is a deficient number, since it is larger than the sum of its proper divisors (29872840843).

10021221034421 is an equidigital number, since it uses as much as digits as its factorization.

10021221034421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403531.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 10021221034421 its reverse (12443012212001), we get a palindrome (22464233246422).

The spelling of 10021221034421 in words is "ten trillion, twenty-one billion, two hundred twenty-one million, thirty-four thousand, four hundred twenty-one".