211121201222 has 16 divisors (see below), whose sum is σ = 317446905600. Its totient is φ = 105305633160.

The previous prime is 211121201191. The next prime is 211121201243. The reversal of 211121201222 is 222102121112.

It is a self number, because there is not a number n which added to its sum of digits gives 211121201222.

It is a congruent number.

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, 9417647 + ... + 9440037.

It is an arithmetic number, because the mean of its divisors is an integer number (19840431600).

Almost surely, 2^211121201222 is an apocalyptic number.

211121201222 is a deficient number, since it is larger than the sum of its proper divisors (106325704378).

211121201222 is a wasteful number, since it uses less digits than its factorization.

211121201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33571.

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

Adding to 211121201222 its reverse (222102121112), we get a palindrome (433223322334).

The spelling of 211121201222 in words is "two hundred eleven billion, one hundred twenty-one million, two hundred one thousand, two hundred twenty-two".