211201122 has 32 divisors (see below), whose sum is σ = 471525120. Its totient is φ = 62511120.

The previous prime is 211201121. The next prime is 211201129. The reversal of 211201122 is 221102112.

It is a junction number, because it is equal to n+sod(n) for n = 211201098 and 211201107.

It is not an unprimeable number, because it can be changed into a prime (211201121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34372 + ... + 40047.

It is an arithmetic number, because the mean of its divisors is an integer number (14735160).

Almost surely, 2^211201122 is an apocalyptic number.

211201122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211201122 is an abundant number, since it is smaller than the sum of its proper divisors (260323998).

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

211201122 is a wasteful number, since it uses less digits than its factorization.

211201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74478.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 211201122 is about 14532.7603021587. The cubic root of 211201122 is about 595.5232757503.

Adding to 211201122 its reverse (221102112), we get a palindrome (432303234).

The spelling of 211201122 in words is "two hundred eleven million, two hundred one thousand, one hundred twenty-two".