21214001364139 has 2 divisors, whose sum is σ = 21214001364140. Its totient is φ = 21214001364138.

The previous prime is 21214001364053. The next prime is 21214001364217. The reversal of 21214001364139 is 93146310041212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21214001364139 - 2¹⁹ = 21214000839851 is a prime.

It is a super-2 number, since 2×21214001364139² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21214001364098 and 21214001364107.

It is not a weakly prime, because it can be changed into another prime (21214001364839) 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 as a sum of consecutive naturals, namely, 10607000682069 + 10607000682070.

It is an arithmetic number, because the mean of its divisors is an integer number (10607000682070).

Almost surely, 2^{21214001364139} is an apocalyptic number.

21214001364139 is a deficient number, since it is larger than the sum of its proper divisors (1).

21214001364139 is an equidigital number, since it uses as much as digits as its factorization.

21214001364139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 21214001364139 in words is "twenty-one trillion, two hundred fourteen billion, one million, three hundred sixty-four thousand, one hundred thirty-nine".