1220330001 has 8 divisors (see below), whose sum is σ = 1775025504. Its totient is φ = 739593920.

The previous prime is 1220329987. The next prime is 1220330003. The reversal of 1220330001 is 1000330221.

It is a happy number.

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 1220330001 - 2⁹ = 1220329489 is a prime.

It is a super-2 number, since 2×1220330001² = 2978410622681320002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220330003) 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, 18489816 + ... + 18489881.

It is an arithmetic number, because the mean of its divisors is an integer number (221878188).

Almost surely, 2^1220330001 is an apocalyptic number.

1220330001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220330001 is a deficient number, since it is larger than the sum of its proper divisors (554695503).

1220330001 is a wasteful number, since it uses less digits than its factorization.

1220330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36979711.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1220330001 is about 34933.2220243138. Note that the first 3 decimals coincide. The cubic root of 1220330001 is about 1068.6260645999.

Adding to 1220330001 its reverse (1000330221), we get a palindrome (2220660222).

The spelling of 1220330001 in words is "one billion, two hundred twenty million, three hundred thirty thousand, one".