1002202100221 has 8 divisors (see below), whose sum is σ = 1205656662080. Its totient is φ = 813818246688.

The previous prime is 1002202100209. The next prime is 1002202100233. The reversal of 1002202100221 is 1220012022001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1002202100209) and next prime (1002202100233).

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

It is a cyclic number.

It is not a de Polignac number, because 1002202100221 - 2³⁵ = 967842361853 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 (1002202100261) 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, 3767676936 + ... + 3767677201.

It is an arithmetic number, because the mean of its divisors is an integer number (150707082760).

Almost surely, 2^{1002202100221} is an apocalyptic number.

It is an amenable number.

1002202100221 is a deficient number, since it is larger than the sum of its proper divisors (203454561859).

1002202100221 is an equidigital number, since it uses as much as digits as its factorization.

1002202100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535354163.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002202100221 its reverse (1220012022001), we get a palindrome (2222214122222).

The spelling of 1002202100221 in words is "one trillion, two billion, two hundred two million, one hundred thousand, two hundred twenty-one".