117221707 has 2 divisors, whose sum is σ = 117221708. Its totient is φ = 117221706.

The previous prime is 117221693. The next prime is 117221729. The reversal of 117221707 is 707122711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117221707 - 2¹¹ = 117219659 is a prime.

It is not a weakly prime, because it can be changed into another prime (117221737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58610853 + 58610854.

It is an arithmetic number, because the mean of its divisors is an integer number (58610854).

Almost surely, 2^117221707 is an apocalyptic number.

117221707 is a deficient number, since it is larger than the sum of its proper divisors (1).

117221707 is an equidigital number, since it uses as much as digits as its factorization.

117221707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1372, while the sum is 28.

The square root of 117221707 is about 10826.8973856779. The cubic root of 117221707 is about 489.4060650482.

The spelling of 117221707 in words is "one hundred seventeen million, two hundred twenty-one thousand, seven hundred seven".