212101011102222 has 80 divisors (see below), whose sum is σ = 520638466233600. Its totient is φ = 64004108711760.

The previous prime is 212101011102121. The next prime is 212101011102251. The reversal of 212101011102222 is 222201110101212.

212101011102222 is a `hidden beast` number, since 21 + 210 + 101 + 110 + 2 + 222 = 666.

212101011102222 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212101011102195 and 212101011102204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 248578572 + ... + 249430367.

It is an arithmetic number, because the mean of its divisors is an integer number (6507980827920).

Almost surely, 2^{212101011102222} is an apocalyptic number.

212101011102222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212101011102222 is an abundant number, since it is smaller than the sum of its proper divisors (308537455131378).

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

212101011102222 is a wasteful number, since it uses less digits than its factorization.

212101011102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498009203 (or 498009194 counting only the distinct ones).

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

Adding to 212101011102222 its reverse (222201110101212), we get a palindrome (434302121203434).

The spelling of 212101011102222 in words is "two hundred twelve trillion, one hundred one billion, eleven million, one hundred two thousand, two hundred twenty-two".