1220706067 has 8 divisors (see below), whose sum is σ = 1400024576. Its totient is φ = 1042620552.

The previous prime is 1220706061. The next prime is 1220706083. The reversal of 1220706067 is 7606070221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220706067 - 2²³ = 1212317459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220706061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306123 + ... + 310084.

It is an arithmetic number, because the mean of its divisors is an integer number (175003072).

Almost surely, 2^1220706067 is an apocalyptic number.

1220706067 is a deficient number, since it is larger than the sum of its proper divisors (179318509).

1220706067 is an equidigital number, since it uses as much as digits as its factorization.

1220706067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616497.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 1220706067 is about 34938.6042508856. The cubic root of 1220706067 is about 1068.7358252534.

Adding to 1220706067 its reverse (7606070221), we get a palindrome (8826776288).

The spelling of 1220706067 in words is "one billion, two hundred twenty million, seven hundred six thousand, sixty-seven".