221411706777707 has 2 divisors, whose sum is σ = 221411706777708. Its totient is φ = 221411706777706.

The previous prime is 221411706777689. The next prime is 221411706777761. The reversal of 221411706777707 is 707777607114122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221411706777707 - 2⁶ = 221411706777643 is a prime.

It is a super-2 number, since 2×221411706777707² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221411706773707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110705853388853 + 110705853388854.

It is an arithmetic number, because the mean of its divisors is an integer number (110705853388854).

Almost surely, 2^{221411706777707} is an apocalyptic number.

221411706777707 is a deficient number, since it is larger than the sum of its proper divisors (1).

221411706777707 is an equidigital number, since it uses as much as digits as its factorization.

221411706777707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11294304, while the sum is 59.

The spelling of 221411706777707 in words is "two hundred twenty-one trillion, four hundred eleven billion, seven hundred six million, seven hundred seventy-seven thousand, seven hundred seven".