1220601259 has 2 divisors, whose sum is σ = 1220601260. Its totient is φ = 1220601258.

The previous prime is 1220601247. The next prime is 1220601341. The reversal of 1220601259 is 9521060221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220601259 - 2⁷ = 1220601131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220601229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610300629 + 610300630.

It is an arithmetic number, because the mean of its divisors is an integer number (610300630).

Almost surely, 2^1220601259 is an apocalyptic number.

1220601259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220601259 is an equidigital number, since it uses as much as digits as its factorization.

1220601259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1220601259 is about 34937.1043304965. The cubic root of 1220601259 is about 1068.7052376907.

The spelling of 1220601259 in words is "one billion, two hundred twenty million, six hundred one thousand, two hundred fifty-nine".