221100212112010 has 64 divisors (see below), whose sum is σ = 501096039600384. Its totient is φ = 68232031488000.

The previous prime is 221100212111957. The next prime is 221100212112019. The reversal of 221100212112010 is 10211212001122.

It is not an unprimeable number, because it can be changed into a prime (221100212112019) 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 31 ways as a sum of consecutive naturals, for example, 1421422887 + ... + 1421578426.

It is an arithmetic number, because the mean of its divisors is an integer number (7829625618756).

Almost surely, 2^{221100212112010} is an apocalyptic number.

221100212112010 is an abundant number, since it is smaller than the sum of its proper divisors (279995827488374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221100212112010 is a wasteful number, since it uses less digits than its factorization.

221100212112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843001439.

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

Adding to 221100212112010 its reverse (10211212001122), we get a palindrome (231311424113132).

The spelling of 221100212112010 in words is "two hundred twenty-one trillion, one hundred billion, two hundred twelve million, one hundred twelve thousand, ten".