211412104021 has 8 divisors (see below), whose sum is σ = 223554578688. Its totient is φ = 199602300000.

The previous prime is 211412103977. The next prime is 211412104051. The reversal of 211412104021 is 120401214112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 211412104021 - 2¹⁷ = 211411972949 is a prime.

It is a super-4 number, since 4×211412104021⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211412104021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211412104051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83166355 + ... + 83168896.

It is an arithmetic number, because the mean of its divisors is an integer number (27944322336).

Almost surely, 2^211412104021 is an apocalyptic number.

It is an amenable number.

211412104021 is a deficient number, since it is larger than the sum of its proper divisors (12142474667).

211412104021 is a wasteful number, since it uses less digits than its factorization.

211412104021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166335323.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211412104021 its reverse (120401214112), we get a palindrome (331813318133).

The spelling of 211412104021 in words is "two hundred eleven billion, four hundred twelve million, one hundred four thousand, twenty-one".