211001022100222 has 4 divisors (see below), whose sum is σ = 316501533150336. Its totient is φ = 105500511050110.

The previous prime is 211001022100159. The next prime is 211001022100279. The reversal of 211001022100222 is 222001220100112.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 211001022100196 and 211001022100205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52750255525054 + ... + 52750255525057.

It is an arithmetic number, because the mean of its divisors is an integer number (79125383287584).

Almost surely, 2^{211001022100222} is an apocalyptic number.

211001022100222 is a deficient number, since it is larger than the sum of its proper divisors (105500511050114).

211001022100222 is a wasteful number, since it uses less digits than its factorization.

211001022100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105500511050113.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211001022100222 its reverse (222001220100112), we get a palindrome (433002242200334).

The spelling of 211001022100222 in words is "two hundred eleven trillion, one billion, twenty-two million, one hundred thousand, two hundred twenty-two".