10000021203221 has 8 divisors (see below), whose sum is σ = 11432376232704. Its totient is φ = 8568611316720.

The previous prime is 10000021203217. The next prime is 10000021203229. The reversal of 10000021203221 is 12230212000001.

It is a happy number.

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

It is not a de Polignac number, because 10000021203221 - 2² = 10000021203217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10000021203196 and 10000021203205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000021203229) 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, 236263070 + ... + 236305391.

It is an arithmetic number, because the mean of its divisors is an integer number (1429047029088).

Almost surely, 2^{10000021203221} is an apocalyptic number.

It is an amenable number.

10000021203221 is a deficient number, since it is larger than the sum of its proper divisors (1432355029483).

10000021203221 is an equidigital number, since it uses as much as digits as its factorization.

10000021203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472571491.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10000021203221 its reverse (12230212000001), we get a palindrome (22230233203222).

The spelling of 10000021203221 in words is "ten trillion, twenty-one million, two hundred three thousand, two hundred twenty-one".