214214155421 has 8 divisors (see below), whose sum is σ = 245073075264. Its totient is φ = 183419460000.

The previous prime is 214214155411. The next prime is 214214155439. The reversal of 214214155421 is 124551412412.

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

It is not a de Polignac number, because 214214155421 - 2⁶ = 214214155357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214214155411) 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 7 ways as a sum of consecutive naturals, for example, 16048955 + ... + 16062296.

It is an arithmetic number, because the mean of its divisors is an integer number (30634134408).

Almost surely, 2^214214155421 is an apocalyptic number.

It is an amenable number.

214214155421 is a deficient number, since it is larger than the sum of its proper divisors (30858919843).

214214155421 is an equidigital number, since it uses as much as digits as its factorization.

214214155421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32112211.

The product of its digits is 12800, while the sum is 32.

Adding to 214214155421 its reverse (124551412412), we get a palindrome (338765567833).

The spelling of 214214155421 in words is "two hundred fourteen billion, two hundred fourteen million, one hundred fifty-five thousand, four hundred twenty-one".