1220332120001 has 16 divisors (see below), whose sum is σ = 1293474801024. Its totient is φ = 1147340899584.

The previous prime is 1220332119971. The next prime is 1220332120087. The reversal of 1220332120001 is 1000212330221.

It is a de Polignac number, because none of the positive numbers 2^k-1220332120001 is a prime.

It is a super-2 number, since 2×1220332120001² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220332120201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147682196 + ... + 147690458.

It is an arithmetic number, because the mean of its divisors is an integer number (80842175064).

Almost surely, 2^{1220332120001} is an apocalyptic number.

It is an amenable number.

1220332120001 is a deficient number, since it is larger than the sum of its proper divisors (73142681023).

1220332120001 is a wasteful number, since it uses less digits than its factorization.

1220332120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16360.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1220332120001 its reverse (1000212330221), we get a palindrome (2220544450222).

The spelling of 1220332120001 in words is "one trillion, two hundred twenty billion, three hundred thirty-two million, one hundred twenty thousand, one".