1220110001 has 8 divisors (see below), whose sum is σ = 1331316000. Its totient is φ = 1108951840.

The previous prime is 1220109991. The next prime is 1220110013. The reversal of 1220110001 is 1000110221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220110001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220110901) 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, 60485 + ... + 78093.

It is an arithmetic number, because the mean of its divisors is an integer number (166414500).

Almost surely, 2^1220110001 is an apocalyptic number.

1220110001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220110001 is a deficient number, since it is larger than the sum of its proper divisors (111205999).

1220110001 is a wasteful number, since it uses less digits than its factorization.

1220110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23919.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1220110001 is about 34930.0730173872. The cubic root of 1220110001 is about 1068.5618437572.

Adding to 1220110001 its reverse (1000110221), we get a palindrome (2220220222).

The spelling of 1220110001 in words is "one billion, two hundred twenty million, one hundred ten thousand, one".