1220302303121 has 48 divisors (see below), whose sum is σ = 1396853035200. Its totient is φ = 1064626992000.

The previous prime is 1220302303091. The next prime is 1220302303141. The reversal of 1220302303121 is 1213032030221.

It is not a de Polignac number, because 1220302303121 - 2¹⁴ = 1220302286737 is a prime.

It is a super-2 number, since 2×1220302303121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220302303093 and 1220302303102.

It is not an unprimeable number, because it can be changed into a prime (1220302303141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53748830 + ... + 53771528.

It is an arithmetic number, because the mean of its divisors is an integer number (29101104900).

Almost surely, 2^{1220302303121} is an apocalyptic number.

1220302303121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220302303121 is a deficient number, since it is larger than the sum of its proper divisors (176550732079).

1220302303121 is a wasteful number, since it uses less digits than its factorization.

1220302303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22958 (or 22947 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1220302303121 its reverse (1213032030221), we get a palindrome (2433334333342).

The spelling of 1220302303121 in words is "one trillion, two hundred twenty billion, three hundred two million, three hundred three thousand, one hundred twenty-one".