211200220002222 has 48 divisors (see below), whose sum is σ = 499781661874560. Its totient is φ = 63925561299600.

The previous prime is 211200220002209. The next prime is 211200220002227. The reversal of 211200220002222 is 222200022002112.

211200220002222 is a `hidden beast` number, since 21 + 1 + 200 + 220 + 0 + 0 + 2 + 222 = 666.

211200220002222 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 = 211200220002195 and 211200220002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200220002227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 620707554 + ... + 621047717.

It is an arithmetic number, because the mean of its divisors is an integer number (10412117955720).

Almost surely, 2^{211200220002222} is an apocalyptic number.

211200220002222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211200220002222 is an abundant number, since it is smaller than the sum of its proper divisors (288581441872338).

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

211200220002222 is a wasteful number, since it uses less digits than its factorization.

211200220002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241756149 (or 1241756146 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 211200220002222 its reverse (222200022002112), we get a palindrome (433400242004334).

The spelling of 211200220002222 in words is "two hundred eleven trillion, two hundred billion, two hundred twenty million, two thousand, two hundred twenty-two".