214210221240 has 64 divisors (see below), whose sum is σ = 670571136000. Its totient is φ = 54639128192.

The previous prime is 214210221221. The next prime is 214210221241. The reversal of 214210221240 is 42122012412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214210221241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38803440 + ... + 38808959.

It is an arithmetic number, because the mean of its divisors is an integer number (10477674000).

Almost surely, 2^214210221240 is an apocalyptic number.

214210221240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214210221240 is an abundant number, since it is smaller than the sum of its proper divisors (456360914760).

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

214210221240 is a wasteful number, since it uses less digits than its factorization.

214210221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77612436 (or 77612432 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 214210221240 its reverse (42122012412), we get a palindrome (256332233652).

The spelling of 214210221240 in words is "two hundred fourteen billion, two hundred ten million, two hundred twenty-one thousand, two hundred forty".