211121220201222 has 8 divisors (see below), whose sum is σ = 422242440402456. Its totient is φ = 70373740067072.

The previous prime is 211121220201127. The next prime is 211121220201247. The reversal of 211121220201222 is 222102022121112.

It is a sphenic number, since it is the product of 3 distinct primes.

211121220201222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17593435016763 + ... + 17593435016774.

It is an arithmetic number, because the mean of its divisors is an integer number (52780305050307).

Almost surely, 2^{211121220201222} is an apocalyptic number.

211121220201222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211121220201222 is a wasteful number, since it uses less digits than its factorization.

211121220201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35186870033542.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211121220201222 its reverse (222102022121112), we get a palindrome (433223242322334).

The spelling of 211121220201222 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred twenty million, two hundred one thousand, two hundred twenty-two".