211223102 has 8 divisors (see below), whose sum is σ = 316900512. Its totient is φ = 105589600.

The previous prime is 211223087. The next prime is 211223137. The reversal of 211223102 is 201322112.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6827 + ... + 21657.

It is an arithmetic number, because the mean of its divisors is an integer number (39612564).

Almost surely, 2^211223102 is an apocalyptic number.

211223102 is a deficient number, since it is larger than the sum of its proper divisors (105677410).

211223102 is a wasteful number, since it uses less digits than its factorization.

211223102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21954.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 211223102 is about 14533.5165049619. The cubic root of 211223102 is about 595.5439340173.

Adding to 211223102 its reverse (201322112), we get a palindrome (412545214).

The spelling of 211223102 in words is "two hundred eleven million, two hundred twenty-three thousand, one hundred two".