10002210001221 has 8 divisors (see below), whose sum is σ = 13696720001824. Its totient is φ = 6487920000720.

The previous prime is 10002210001193. The next prime is 10002210001229. The reversal of 10002210001221 is 12210001220001.

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

It is a de Polignac number, because none of the positive numbers 2^k-10002210001221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002210001197 and 10002210001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002210001229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45054999895 + ... + 45055000116.

It is an arithmetic number, because the mean of its divisors is an integer number (1712090000228).

Almost surely, 2^{10002210001221} is an apocalyptic number.

It is an amenable number.

10002210001221 is a deficient number, since it is larger than the sum of its proper divisors (3694510000603).

10002210001221 is an equidigital number, since it uses as much as digits as its factorization.

10002210001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90110000051.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10002210001221 its reverse (12210001220001), we get a palindrome (22212211221222).

The spelling of 10002210001221 in words is "ten trillion, two billion, two hundred ten million, one thousand, two hundred twenty-one".