221212000002110 has 128 divisors (see below), whose sum is σ = 461959815389184. Its totient is φ = 75595218209280.

The previous prime is 221212000002107. The next prime is 221212000002121. The reversal of 221212000002110 is 11200000212122.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 615003737 + ... + 615363323.

It is an arithmetic number, because the mean of its divisors is an integer number (3609061057728).

Almost surely, 2^{221212000002110} is an apocalyptic number.

221212000002110 is an abundant number, since it is smaller than the sum of its proper divisors (240747815387074).

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

221212000002110 is a wasteful number, since it uses less digits than its factorization.

221212000002110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366298.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221212000002110 its reverse (11200000212122), we get a palindrome (232412000214232).

The spelling of 221212000002110 in words is "two hundred twenty-one trillion, two hundred twelve billion, two thousand, one hundred ten".