1220230202311 has 8 divisors (see below), whose sum is σ = 1282444007040. Its totient is φ = 1158779757432.

The previous prime is 1220230202299. The next prime is 1220230202329. The reversal of 1220230202311 is 1132020320221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1220230202311 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 (1220230202371) 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, 190836685 + ... + 190843078.

It is an arithmetic number, because the mean of its divisors is an integer number (160305500880).

Almost surely, 2^{1220230202311} is an apocalyptic number.

1220230202311 is a deficient number, since it is larger than the sum of its proper divisors (62213804729).

1220230202311 is a wasteful number, since it uses less digits than its factorization.

1220230202311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381679925.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1220230202311 its reverse (1132020320221), we get a palindrome (2352250522532).

The spelling of 1220230202311 in words is "one trillion, two hundred twenty billion, two hundred thirty million, two hundred two thousand, three hundred eleven".