221002220210939 has 2 divisors, whose sum is σ = 221002220210940. Its totient is φ = 221002220210938.

The previous prime is 221002220210917. The next prime is 221002220211011. The reversal of 221002220210939 is 939012022200122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221002220210939 - 2¹⁶ = 221002220145403 is a prime.

It is a super-2 number, since 2×221002220210939² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221002220210899 and 221002220210908.

It is not a weakly prime, because it can be changed into another prime (221002220210039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501110105469 + 110501110105470.

It is an arithmetic number, because the mean of its divisors is an integer number (110501110105470).

Almost surely, 2^{221002220210939} is an apocalyptic number.

221002220210939 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002220210939 is an equidigital number, since it uses as much as digits as its factorization.

221002220210939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 221002220210939 in words is "two hundred twenty-one trillion, two billion, two hundred twenty million, two hundred ten thousand, nine hundred thirty-nine".