212250534221 has 8 divisors (see below), whose sum is σ = 231553229088. Its totient is φ = 192949038000.

The previous prime is 212250534203. The next prime is 212250534229. The reversal of 212250534221 is 122435052212.

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 212250534221 - 2³⁴ = 195070665037 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 (212250534229) 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, 92966 + ... + 658136.

It is an arithmetic number, because the mean of its divisors is an integer number (28944153636).

Almost surely, 2^212250534221 is an apocalyptic number.

It is an amenable number.

212250534221 is a deficient number, since it is larger than the sum of its proper divisors (19302694867).

212250534221 is a wasteful number, since it uses less digits than its factorization.

212250534221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599323.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 212250534221 its reverse (122435052212), we get a palindrome (334685586433).

The spelling of 212250534221 in words is "two hundred twelve billion, two hundred fifty million, five hundred thirty-four thousand, two hundred twenty-one".