211221221102222 has 8 divisors (see below), whose sum is σ = 316877281657272. Its totient is φ = 105595460549800.

The previous prime is 211221221102119. The next prime is 211221221102231. The reversal of 211221221102222 is 222201122122112.

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

It is a super-2 number, since 2×211221221102222² (a number of 29 digits) contains 22 as substring.

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, 7574983229 + ... + 7575011112.

It is an arithmetic number, because the mean of its divisors is an integer number (39609660207159).

Almost surely, 2^{211221221102222} is an apocalyptic number.

211221221102222 is a deficient number, since it is larger than the sum of its proper divisors (105656060555050).

211221221102222 is a wasteful number, since it uses less digits than its factorization.

211221221102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15150001314.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 211221221102222 its reverse (222201122122112), we get a palindrome (433422343224334).

The spelling of 211221221102222 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred two thousand, two hundred twenty-two".