221021112120002 has 16 divisors (see below), whose sum is σ = 331951208099712. Its totient is φ = 110370722938560.

The previous prime is 221021112119971. The next prime is 221021112120023. The reversal of 221021112120002 is 200021211120122.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29430602 + ... + 36169082.

It is an arithmetic number, because the mean of its divisors is an integer number (20746950506232).

Almost surely, 2^{221021112120002} is an apocalyptic number.

221021112120002 is a deficient number, since it is larger than the sum of its proper divisors (110930095979710).

221021112120002 is a wasteful number, since it uses less digits than its factorization.

221021112120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6759233.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221021112120002 its reverse (200021211120122), we get a palindrome (421042323240124).

The spelling of 221021112120002 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred twelve million, one hundred twenty thousand, two".