211400111226 has 8 divisors (see below), whose sum is σ = 422800222464. Its totient is φ = 70466703740.

The previous prime is 211400111201. The next prime is 211400111239. The reversal of 211400111226 is 622111004112.

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

211400111226 is an admirable 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, 17616675930 + ... + 17616675941.

It is an arithmetic number, because the mean of its divisors is an integer number (52850027808).

Almost surely, 2^211400111226 is an apocalyptic number.

211400111226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211400111226 is a wasteful number, since it uses less digits than its factorization.

211400111226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35233351876.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 211400111226 its reverse (622111004112), we get a palindrome (833511115338).

The spelling of 211400111226 in words is "two hundred eleven billion, four hundred million, one hundred eleven thousand, two hundred twenty-six".