211001222101222 has 128 divisors (see below), whose sum is σ = 380155508637696. Its totient is φ = 85878553318272.

The previous prime is 211001222101217. The next prime is 211001222101249. The reversal of 211001222101222 is 222101222100112.

It is a self number, because there is not a number n which added to its sum of digits gives 211001222101222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34236768313 + ... + 34236774475.

It is an arithmetic number, because the mean of its divisors is an integer number (2969964911232).

Almost surely, 2^{211001222101222} is an apocalyptic number.

211001222101222 is a deficient number, since it is larger than the sum of its proper divisors (169154286536474).

211001222101222 is a wasteful number, since it uses less digits than its factorization.

211001222101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7754.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211001222101222 its reverse (222101222100112), we get a palindrome (433102444201334).

The spelling of 211001222101222 in words is "two hundred eleven trillion, one billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty-two".