212580401129 has 2 divisors, whose sum is σ = 212580401130. Its totient is φ = 212580401128.

The previous prime is 212580401101. The next prime is 212580401161. The reversal of 212580401129 is 921104085212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155057175529 + 57523225600 = 393773^2 + 239840^2 .

It is a cyclic number.

It is not a de Polignac number, because 212580401129 - 2³⁶ = 143860924393 is a prime.

It is not a weakly prime, because it can be changed into another prime (212580401179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106290200564 + 106290200565.

It is an arithmetic number, because the mean of its divisors is an integer number (106290200565).

Almost surely, 2^212580401129 is an apocalyptic number.

It is an amenable number.

212580401129 is a deficient number, since it is larger than the sum of its proper divisors (1).

212580401129 is an equidigital number, since it uses as much as digits as its factorization.

212580401129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 212580401129 in words is "two hundred twelve billion, five hundred eighty million, four hundred one thousand, one hundred twenty-nine".