214121240009 has 2 divisors, whose sum is σ = 214121240010. Its totient is φ = 214121240008.

The previous prime is 214121239991. The next prime is 214121240063. The reversal of 214121240009 is 900042121412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212521000000 + 1600240009 = 461000^2 + 40003^2 .

It is a cyclic number.

It is not a de Polignac number, because 214121240009 - 2²⁸ = 213852804553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214121240009.

It is not a weakly prime, because it can be changed into another prime (214121240209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107060620004 + 107060620005.

It is an arithmetic number, because the mean of its divisors is an integer number (107060620005).

Almost surely, 2^214121240009 is an apocalyptic number.

It is an amenable number.

214121240009 is a deficient number, since it is larger than the sum of its proper divisors (1).

214121240009 is an equidigital number, since it uses as much as digits as its factorization.

214121240009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 214121240009 in words is "two hundred fourteen billion, one hundred twenty-one million, two hundred forty thousand, nine".