1002211000221 has 4 divisors (see below), whose sum is σ = 1336281333632. Its totient is φ = 668140666812.

The previous prime is 1002211000211. The next prime is 1002211000223. The reversal of 1002211000221 is 1220001122001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1002211000221 - 2⁷ = 1002211000093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002211000197 and 1002211000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002211000223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167035166701 + ... + 167035166706.

It is an arithmetic number, because the mean of its divisors is an integer number (334070333408).

Almost surely, 2^{1002211000221} is an apocalyptic number.

It is an amenable number.

1002211000221 is a deficient number, since it is larger than the sum of its proper divisors (334070333411).

1002211000221 is an equidigital number, since it uses as much as digits as its factorization.

1002211000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334070333410.

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

Adding to 1002211000221 its reverse (1220001122001), we get a palindrome (2222212122222).

The spelling of 1002211000221 in words is "one trillion, two billion, two hundred eleven million, two hundred twenty-one", and thus it is an aban number.