211223030113200 has 480 divisors, whose sum is σ = 796427052120576. Its totient is φ = 46841599918080.

The previous prime is 211223030113189. The next prime is 211223030113211. The reversal of 211223030113200 is 2311030322112.

It is an interprime number because it is at equal distance from previous prime (211223030113189) and next prime (211223030113211).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 108749779 + ... + 110675021.

Almost surely, 2^{211223030113200} is an apocalyptic number.

211223030113200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211223030113200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398213526060288).

211223030113200 is an abundant number, since it is smaller than the sum of its proper divisors (585204022007376).

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

211223030113200 is a wasteful number, since it uses less digits than its factorization.

211223030113200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925661 (or 1925650 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211223030113200 its reverse (2311030322112), we get a palindrome (213534060435312).

The spelling of 211223030113200 in words is "two hundred eleven trillion, two hundred twenty-three billion, thirty million, one hundred thirteen thousand, two hundred".