213222167564 has 24 divisors (see below), whose sum is σ = 427406988288. Its totient is φ = 91174646160.

The previous prime is 213222167551. The next prime is 213222167611. The reversal of 213222167564 is 465761222312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8582492 + ... + 8607299.

It is an arithmetic number, because the mean of its divisors is an integer number (17808624512).

Almost surely, 2^213222167564 is an apocalyptic number.

It is an amenable number.

213222167564 is an abundant number, since it is smaller than the sum of its proper divisors (214184820724).

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

213222167564 is a wasteful number, since it uses less digits than its factorization.

213222167564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17190245 (or 17190243 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

Adding to 213222167564 its reverse (465761222312), we get a palindrome (678983389876).

The spelling of 213222167564 in words is "two hundred thirteen billion, two hundred twenty-two million, one hundred sixty-seven thousand, five hundred sixty-four".