214501422221 has 4 divisors (see below), whose sum is σ = 214544233344. Its totient is φ = 214458611100.

The previous prime is 214501422199. The next prime is 214501422259. The reversal of 214501422221 is 122224105412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214501422221 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 (214501422271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21398045 + ... + 21408066.

It is an arithmetic number, because the mean of its divisors is an integer number (53636058336).

Almost surely, 2^214501422221 is an apocalyptic number.

It is an amenable number.

214501422221 is a deficient number, since it is larger than the sum of its proper divisors (42811123).

214501422221 is an equidigital number, since it uses as much as digits as its factorization.

214501422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42811122.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 214501422221 its reverse (122224105412), we get a palindrome (336725527633).

The spelling of 214501422221 in words is "two hundred fourteen billion, five hundred one million, four hundred twenty-two thousand, two hundred twenty-one".