1024000212181 has 2 divisors, whose sum is σ = 1024000212182. Its totient is φ = 1024000212180.

The previous prime is 1024000212101. The next prime is 1024000212293. The reversal of 1024000212181 is 1812120004201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589837824081 + 434162388100 = 768009^2 + 658910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1024000212181 - 2²⁷ = 1023865994453 is a prime.

It is a super-2 number, since 2×1024000212181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1024000212101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512000106090 + 512000106091.

It is an arithmetic number, because the mean of its divisors is an integer number (512000106091).

Almost surely, 2^{1024000212181} is an apocalyptic number.

It is an amenable number.

1024000212181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1024000212181 is an equidigital number, since it uses as much as digits as its factorization.

1024000212181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 1024000212181 its reverse (1812120004201), we get a palindrome (2836120216382).

The spelling of 1024000212181 in words is "one trillion, twenty-four billion, two hundred twelve thousand, one hundred eighty-one".