1220100000001 has 8 divisors (see below), whose sum is σ = 1297169484480. Its totient is φ = 1145032320432.

The previous prime is 1220099999999. The next prime is 1220100000013. The reversal of 1220100000001 is 1000000010221.

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 1220100000001 - 2¹ = 1220099999999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220100000001.

It is not an unprimeable number, because it can be changed into a prime (1220100000061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500449971 + ... + 500452408.

It is an arithmetic number, because the mean of its divisors is an integer number (162146185560).

Almost surely, 2^{1220100000001} is an apocalyptic number.

It is an amenable number.

1220100000001 is a deficient number, since it is larger than the sum of its proper divisors (77069484479).

1220100000001 is a wasteful number, since it uses less digits than its factorization.

1220100000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000902455.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1220100000001 its reverse (1000000010221), we get a palindrome (2220100010222).

The spelling of 1220100000001 in words is "one trillion, two hundred twenty billion, one hundred million, one", and thus it is an aban number.