213120223220402 has 16 divisors (see below), whose sum is σ = 321741417888792. Its totient is φ = 105874559817600.

The previous prime is 213120223220389. The next prime is 213120223220453. The reversal of 213120223220402 is 204022322021312.

It can be written as a sum of positive squares in 4 ways, for example, as 194937751164121 + 18182472056281 = 13962011^2 + 4264091^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368684099 + ... + 369261702.

Almost surely, 2^{213120223220402} is an apocalyptic number.

213120223220402 is a deficient number, since it is larger than the sum of its proper divisors (108621194668390).

213120223220402 is a wasteful number, since it uses less digits than its factorization.

213120223220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737946733.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 213120223220402 its reverse (204022322021312), we get a palindrome (417142545241714).

The spelling of 213120223220402 in words is "two hundred thirteen trillion, one hundred twenty billion, two hundred twenty-three million, two hundred twenty thousand, four hundred two".