1002102122221 has 8 divisors (see below), whose sum is σ = 1056311452800. Its totient is φ = 948039503040.

The previous prime is 1002102122207. The next prime is 1002102122233. The reversal of 1002102122221 is 1222212012001.

It is a happy number.

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 1002102122221 - 2¹⁹ = 1002101597933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002102122195 and 1002102122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002102122321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36663820 + ... + 36691141.

It is an arithmetic number, because the mean of its divisors is an integer number (132038931600).

Almost surely, 2^{1002102122221} is an apocalyptic number.

It is an amenable number.

1002102122221 is a deficient number, since it is larger than the sum of its proper divisors (54209330579).

1002102122221 is an equidigital number, since it uses as much as digits as its factorization.

1002102122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73355699.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1002102122221 its reverse (1222212012001), we get a palindrome (2224314134222).

The spelling of 1002102122221 in words is "one trillion, two billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty-one".