1220302333331 has 16 divisors (see below), whose sum is σ = 1246020019200. Its totient is φ = 1194686814048.

The previous prime is 1220302333279. The next prime is 1220302333363. The reversal of 1220302333331 is 1333332030221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220302333331 is a prime.

It is a super-2 number, since 2×1220302333331² (a number of 25 digits) contains 22 as substring.

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 1220302333331.

It is not an unprimeable number, because it can be changed into a prime (1220302333231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58212830 + ... + 58233788.

It is an arithmetic number, because the mean of its divisors is an integer number (77876251200).

Almost surely, 2^{1220302333331} is an apocalyptic number.

1220302333331 is a deficient number, since it is larger than the sum of its proper divisors (25717685869).

1220302333331 is a wasteful number, since it uses less digits than its factorization.

1220302333331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23338.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 1220302333331 its reverse (1333332030221), we get a palindrome (2553634363552).

The spelling of 1220302333331 in words is "one trillion, two hundred twenty billion, three hundred two million, three hundred thirty-three thousand, three hundred thirty-one".