221210100110222 has 4 divisors (see below), whose sum is σ = 331815150165336. Its totient is φ = 110605050055110.

The previous prime is 221210100110159. The next prime is 221210100110227. The reversal of 221210100110222 is 222011001012122.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 221210100110222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221210100110227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55302525027554 + ... + 55302525027557.

It is an arithmetic number, because the mean of its divisors is an integer number (82953787541334).

Almost surely, 2^{221210100110222} is an apocalyptic number.

221210100110222 is a deficient number, since it is larger than the sum of its proper divisors (110605050055114).

221210100110222 is a wasteful number, since it uses less digits than its factorization.

221210100110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110605050055113.

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

Adding to 221210100110222 its reverse (222011001012122), we get a palindrome (443221101122344).

The spelling of 221210100110222 in words is "two hundred twenty-one trillion, two hundred ten billion, one hundred million, one hundred ten thousand, two hundred twenty-two".