211221122102 has 8 divisors (see below), whose sum is σ = 319111048200. Its totient is φ = 104850772704.

The previous prime is 211221122083. The next prime is 211221122107. The reversal of 211221122102 is 201221122112.

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

It is a super-2 number, since 2×211221122102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211221122107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379893827 + ... + 379894382.

It is an arithmetic number, because the mean of its divisors is an integer number (39888881025).

Almost surely, 2^211221122102 is an apocalyptic number.

211221122102 is a deficient number, since it is larger than the sum of its proper divisors (107889926098).

211221122102 is a wasteful number, since it uses less digits than its factorization.

211221122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759788350.

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

Adding to 211221122102 its reverse (201221122112), we get a palindrome (412442244214).

The spelling of 211221122102 in words is "two hundred eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred two".