201212101110222 has 12 divisors (see below), whose sum is σ = 435959552405520. Its totient is φ = 67070700370068.

The previous prime is 201212101110221. The next prime is 201212101110239. The reversal of 201212101110222 is 222011101212102.

201212101110222 is a `hidden beast` number, since 2 + 0 + 121 + 210 + 1 + 110 + 222 = 666.

It is a super-3 number, since 3×201212101110222³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11178450061679 = 201212101110222 / (2 + 0 + 1 + 2 + 1 + 2 + 1 + 0 + 1 + 1 + 1 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 201212101110195 and 201212101110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212101110221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5589225030822 + ... + 5589225030857.

It is an arithmetic number, because the mean of its divisors is an integer number (36329962700460).

Almost surely, 2^{201212101110222} is an apocalyptic number.

201212101110222 is an abundant number, since it is smaller than the sum of its proper divisors (234747451295298).

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

201212101110222 is a wasteful number, since it uses less digits than its factorization.

201212101110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11178450061687 (or 11178450061684 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201212101110222 its reverse (222011101212102), we get a palindrome (423223202322324).

The spelling of 201212101110222 in words is "two hundred one trillion, two hundred twelve billion, one hundred one million, one hundred ten thousand, two hundred twenty-two".