221207007139 has 2 divisors, whose sum is σ = 221207007140. Its totient is φ = 221207007138.

The previous prime is 221207007127. The next prime is 221207007143. The reversal of 221207007139 is 931700702122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221207007139 is a prime.

It is not a weakly prime, because it can be changed into another prime (221207002139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110603503569 + 110603503570.

It is an arithmetic number, because the mean of its divisors is an integer number (110603503570).

Almost surely, 2^221207007139 is an apocalyptic number.

221207007139 is a deficient number, since it is larger than the sum of its proper divisors (1).

221207007139 is an equidigital number, since it uses as much as digits as its factorization.

221207007139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 221207007139 in words is "two hundred twenty-one billion, two hundred seven million, seven thousand, one hundred thirty-nine".