10001002221203 has 6 divisors (see below), whose sum is σ = 11633818910436. Its totient is φ = 8572287618132.

The previous prime is 10001002221193. The next prime is 10001002221229. The reversal of 10001002221203 is 30212220010001.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-10001002221203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001002221503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102051043025 + ... + 102051043122.

It is an arithmetic number, because the mean of its divisors is an integer number (1938969818406).

Almost surely, 2^{10001002221203} is an apocalyptic number.

10001002221203 is a deficient number, since it is larger than the sum of its proper divisors (1632816689233).

10001002221203 is an equidigital number, since it uses as much as digits as its factorization.

10001002221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204102086161 (or 204102086154 counting only the distinct ones).

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

Adding to 10001002221203 its reverse (30212220010001), we get a palindrome (40213222231204).

The spelling of 10001002221203 in words is "ten trillion, one billion, two million, two hundred twenty-one thousand, two hundred three".