1220002200101 has 4 divisors (see below), whose sum is σ = 1220702949804. Its totient is φ = 1219301450400.

The previous prime is 1220002200097. The next prime is 1220002200227. The reversal of 1220002200101 is 1010022000221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32771860900 + 1187230339201 = 181030^2 + 1089601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220002200101 - 2² = 1220002200097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220002400101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350372240 + ... + 350375721.

It is an arithmetic number, because the mean of its divisors is an integer number (305175737451).

Almost surely, 2^{1220002200101} is an apocalyptic number.

It is an amenable number.

1220002200101 is a deficient number, since it is larger than the sum of its proper divisors (700749703).

1220002200101 is an equidigital number, since it uses as much as digits as its factorization.

1220002200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700749702.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1220002200101 its reverse (1010022000221), we get a palindrome (2230024200322).

The spelling of 1220002200101 in words is "one trillion, two hundred twenty billion, two million, two hundred thousand, one hundred one".