213122202037 has 2 divisors, whose sum is σ = 213122202038. Its totient is φ = 213122202036.

The previous prime is 213122201969. The next prime is 213122202043. The reversal of 213122202037 is 730202221312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161046505636 + 52075696401 = 401306^2 + 228201^2 .

It is a cyclic number.

It is not a de Polignac number, because 213122202037 - 2¹⁵ = 213122169269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213122202637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561101018 + 106561101019.

It is an arithmetic number, because the mean of its divisors is an integer number (106561101019).

Almost surely, 2^213122202037 is an apocalyptic number.

It is an amenable number.

213122202037 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122202037 is an equidigital number, since it uses as much as digits as its factorization.

213122202037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 213122202037 its reverse (730202221312), we get a palindrome (943324423349).

The spelling of 213122202037 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred two thousand, thirty-seven".