212222160641 has 4 divisors (see below), whose sum is σ = 212224300800. Its totient is φ = 212220020484.

The previous prime is 212222160637. The next prime is 212222160643. The reversal of 212222160641 is 146061222212.

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 not a de Polignac number, because 212222160641 - 2² = 212222160637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212222160643) 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, 913721 + ... + 1122198.

It is an arithmetic number, because the mean of its divisors is an integer number (53056075200).

Almost surely, 2^212222160641 is an apocalyptic number.

It is an amenable number.

212222160641 is a deficient number, since it is larger than the sum of its proper divisors (2140159).

212222160641 is a wasteful number, since it uses less digits than its factorization.

212222160641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140158.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 212222160641 its reverse (146061222212), we get a palindrome (358283382853).

The spelling of 212222160641 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred sixty thousand, six hundred forty-one".