221210001224112 has 20 divisors (see below), whose sum is σ = 571459169829080. Its totient is φ = 73736667074688.

The previous prime is 221210001224099. The next prime is 221210001224123. The reversal of 221210001224112 is 211422100012122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304270846037 + ... + 2304270846132.

It is an arithmetic number, because the mean of its divisors is an integer number (28572958491454).

Almost surely, 2^{221210001224112} is an apocalyptic number.

It is an amenable number.

221210001224112 is an abundant number, since it is smaller than the sum of its proper divisors (350249168604968).

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

221210001224112 is a wasteful number, since it uses less digits than its factorization.

221210001224112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4608541692180 (or 4608541692174 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221210001224112 its reverse (211422100012122), we get a palindrome (432632101236234).

The spelling of 221210001224112 in words is "two hundred twenty-one trillion, two hundred ten billion, one million, two hundred twenty-four thousand, one hundred twelve".