213113221262 has 4 divisors (see below), whose sum is σ = 319669831896. Its totient is φ = 106556610630.

The previous prime is 213113221261. The next prime is 213113221283. The reversal of 213113221262 is 262122311312.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113221261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53278305314 + ... + 53278305317.

It is an arithmetic number, because the mean of its divisors is an integer number (79917457974).

Almost surely, 2^213113221262 is an apocalyptic number.

213113221262 is a deficient number, since it is larger than the sum of its proper divisors (106556610634).

213113221262 is a wasteful number, since it uses less digits than its factorization.

213113221262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106556610633.

The product of its digits is 1728, while the sum is 26.

Adding to 213113221262 its reverse (262122311312), we get a palindrome (475235532574).

The spelling of 213113221262 in words is "two hundred thirteen billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred sixty-two".