221111112020002 has 32 divisors (see below), whose sum is σ = 345756487507200. Its totient is φ = 105921062300928.

The previous prime is 221111112019997. The next prime is 221111112020003. The reversal of 221111112020002 is 200020211111122.

It is not an unprimeable number, because it can be changed into a prime (221111112020003) 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 15 ways as a sum of consecutive naturals, for example, 24258823 + ... + 32104714.

It is an arithmetic number, because the mean of its divisors is an integer number (10804890234600).

Almost surely, 2^{221111112020002} is an apocalyptic number.

221111112020002 is a deficient number, since it is larger than the sum of its proper divisors (124645375487198).

221111112020002 is a wasteful number, since it uses less digits than its factorization.

221111112020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56364090.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221111112020002 its reverse (200020211111122), we get a palindrome (421131323131124).

The spelling of 221111112020002 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred twelve million, twenty thousand, two".