10002120221211 has 4 divisors (see below), whose sum is σ = 13336160294952. Its totient is φ = 6668080147472.

The previous prime is 10002120221143. The next prime is 10002120221231. The reversal of 10002120221211 is 11212202120001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10002120221211 - 2¹⁷ = 10002120090139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10002120221231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667020036866 + ... + 1667020036871.

It is an arithmetic number, because the mean of its divisors is an integer number (3334040073738).

Almost surely, 2^{10002120221211} is an apocalyptic number.

10002120221211 is a deficient number, since it is larger than the sum of its proper divisors (3334040073741).

10002120221211 is an equidigital number, since it uses as much as digits as its factorization.

10002120221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334040073740.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10002120221211 its reverse (11212202120001), we get a palindrome (21214322341212).

The spelling of 10002120221211 in words is "ten trillion, two billion, one hundred twenty million, two hundred twenty-one thousand, two hundred eleven".