221014139 has 2 divisors, whose sum is σ = 221014140. Its totient is φ = 221014138.

The previous prime is 221014121. The next prime is 221014147. The reversal of 221014139 is 931410122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221014139 - 2²⁰ = 219965563 is a prime.

It is a super-2 number, since 2×221014139² = 97694499275822642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (221014639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110507069 + 110507070.

It is an arithmetic number, because the mean of its divisors is an integer number (110507070).

Almost surely, 2^221014139 is an apocalyptic number.

221014139 is a deficient number, since it is larger than the sum of its proper divisors (1).

221014139 is an equidigital number, since it uses as much as digits as its factorization.

221014139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 221014139 is about 14866.5442857444. The cubic root of 221014139 is about 604.6072527798.

The spelling of 221014139 in words is "two hundred twenty-one million, fourteen thousand, one hundred thirty-nine".