1220303220001 has 8 divisors (see below), whose sum is σ = 1293317512200. Its totient is φ = 1147425788928.

The previous prime is 1220303219983. The next prime is 1220303220023. The reversal of 1220303220001 is 1000223030221.

It can be written as a sum of positive squares in 4 ways, for example, as 241788558400 + 978514661601 = 491720^2 + 989199^2 .

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 1220303220001 - 2³⁷ = 1082864266529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220303220041) 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, 34196916 + ... + 34232581.

It is an arithmetic number, because the mean of its divisors is an integer number (161664689025).

Almost surely, 2^{1220303220001} is an apocalyptic number.

It is an amenable number.

1220303220001 is a deficient number, since it is larger than the sum of its proper divisors (73014292199).

1220303220001 is a wasteful number, since it uses less digits than its factorization.

1220303220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68430563.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1220303220001 its reverse (1000223030221), we get a palindrome (2220526250222).

The spelling of 1220303220001 in words is "one trillion, two hundred twenty billion, three hundred three million, two hundred twenty thousand, one".