211100220122 has 16 divisors (see below), whose sum is σ = 348073650144. Its totient is φ = 95222166000.

The previous prime is 211100220109. The next prime is 211100220161. The reversal of 211100220122 is 221022001112.

It is a junction number, because it is equal to n+sod(n) for n = 211100220097 and 211100220106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36621029 + ... + 36626792.

It is an arithmetic number, because the mean of its divisors is an integer number (21754603134).

Almost surely, 2^211100220122 is an apocalyptic number.

211100220122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211100220122 is a deficient number, since it is larger than the sum of its proper divisors (136973430022).

211100220122 is a wasteful number, since it uses less digits than its factorization.

211100220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73247965.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211100220122 its reverse (221022001112), we get a palindrome (432122221234).

The spelling of 211100220122 in words is "two hundred eleven billion, one hundred million, two hundred twenty thousand, one hundred twenty-two".