212222160642 has 16 divisors (see below), whose sum is σ = 427542456672. Its totient is φ = 70224364320.

The previous prime is 212222160637. The next prime is 212222160643. The reversal of 212222160642 is 246061222212.

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 7 ways as a sum of consecutive naturals, for example, 129088084 + ... + 129089727.

It is an arithmetic number, because the mean of its divisors is an integer number (26721403542).

Almost surely, 2^212222160642 is an apocalyptic number.

212222160642 is an abundant number, since it is smaller than the sum of its proper divisors (215320296030).

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

212222160642 is a wasteful number, since it uses less digits than its factorization.

212222160642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258177953.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 212222160642 its reverse (246061222212), we get a palindrome (458283382854).

The spelling of 212222160642 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred sixty thousand, six hundred forty-two".