211012221122 has 32 divisors (see below), whose sum is σ = 325404034560. Its totient is φ = 102575753280.

The previous prime is 211012221103. The next prime is 211012221143. The reversal of 211012221122 is 221122210112.

It is a self number, because there is not a number n which added to its sum of digits gives 211012221122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12231779 + ... + 12249017.

It is an arithmetic number, because the mean of its divisors is an integer number (10168876080).

Almost surely, 2^211012221122 is an apocalyptic number.

211012221122 is a deficient number, since it is larger than the sum of its proper divisors (114391813438).

211012221122 is a wasteful number, since it uses less digits than its factorization.

211012221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18146.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211012221122 its reverse (221122210112), we get a palindrome (432134431234).

The spelling of 211012221122 in words is "two hundred eleven billion, twelve million, two hundred twenty-one thousand, one hundred twenty-two".