213211143651 has 16 divisors (see below), whose sum is σ = 315976723200. Its totient is φ = 126780781920.

The previous prime is 213211143647. The next prime is 213211143671. The reversal of 213211143651 is 156341112312.

It is not a de Polignac number, because 213211143651 - 2² = 213211143647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213211143611) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 60950551 + ... + 60954048.

It is an arithmetic number, because the mean of its divisors is an integer number (19748545200).

Almost surely, 2^213211143651 is an apocalyptic number.

213211143651 is a deficient number, since it is larger than the sum of its proper divisors (102765579549).

213211143651 is a wasteful number, since it uses less digits than its factorization.

213211143651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121904666.

The product of its digits is 4320, while the sum is 30.

Adding to 213211143651 its reverse (156341112312), we get a palindrome (369552255963).

The spelling of 213211143651 in words is "two hundred thirteen billion, two hundred eleven million, one hundred forty-three thousand, six hundred fifty-one".