211421111334 has 8 divisors (see below), whose sum is σ = 422842222680. Its totient is φ = 70473703776.

The previous prime is 211421111329. The next prime is 211421111339. The reversal of 211421111334 is 433111124112.

It is an interprime number because it is at equal distance from previous prime (211421111329) and next prime (211421111339).

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

211421111334 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211421111339) 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, 17618425939 + ... + 17618425950.

It is an arithmetic number, because the mean of its divisors is an integer number (52855277835).

Almost surely, 2^211421111334 is an apocalyptic number.

211421111334 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.

211421111334 is a wasteful number, since it uses less digits than its factorization.

211421111334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35236851894.

The product of its digits is 576, while the sum is 24.

Adding to 211421111334 its reverse (433111124112), we get a palindrome (644532235446).

The spelling of 211421111334 in words is "two hundred eleven billion, four hundred twenty-one million, one hundred eleven thousand, three hundred thirty-four".