211020221201222 has 16 divisors (see below), whose sum is σ = 318677917501152. Its totient is φ = 104794803422400.

The previous prime is 211020221201213. The next prime is 211020221201249. The reversal of 211020221201222 is 222102122020112.

It is a super-2 number, since 2×211020221201222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211020221201194 and 211020221201203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137918279 + ... + 139439922.

It is an arithmetic number, because the mean of its divisors is an integer number (19917369843822).

Almost surely, 2^{211020221201222} is an apocalyptic number.

211020221201222 is a deficient number, since it is larger than the sum of its proper divisors (107657696299930).

211020221201222 is a wasteful number, since it uses less digits than its factorization.

211020221201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277360783.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211020221201222 its reverse (222102122020112), we get a palindrome (433122343221334).

The spelling of 211020221201222 in words is "two hundred eleven trillion, twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-two".