211000122222 has 32 divisors (see below), whose sum is σ = 440751542400. Its totient is φ = 67272595488.

The previous prime is 211000122167. The next prime is 211000122233. The reversal of 211000122222 is 222221000112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8041572 + ... + 8067767.

It is an arithmetic number, because the mean of its divisors is an integer number (13773485700).

Almost surely, 2^211000122222 is an apocalyptic number.

211000122222 is an abundant number, since it is smaller than the sum of its proper divisors (229751420178).

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

211000122222 is a wasteful number, since it uses less digits than its factorization.

211000122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16109440.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 211000122222 its reverse (222221000112), we get a palindrome (433221122334).

The spelling of 211000122222 in words is "two hundred eleven billion, one hundred twenty-two thousand, two hundred twenty-two".