201110212221222 has 16 divisors (see below), whose sum is σ = 402226625532672. Its totient is φ = 67035703892040.

The previous prime is 201110212221221. The next prime is 201110212221239. The reversal of 201110212221222 is 222122212011102.

201110212221222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110212221221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257957098 + ... + 258735549.

It is an arithmetic number, because the mean of its divisors is an integer number (25139164095792).

Almost surely, 2^{201110212221222} is an apocalyptic number.

201110212221222 is an abundant number, since it is smaller than the sum of its proper divisors (201116413311450).

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

201110212221222 is a wasteful number, since it uses less digits than its factorization.

201110212221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516757523.

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

Adding to 201110212221222 its reverse (222122212011102), we get a palindrome (423232424232324).

The spelling of 201110212221222 in words is "two hundred one trillion, one hundred ten billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".