1220220210223 has 4 divisors (see below), whose sum is σ = 1394537383120. Its totient is φ = 1045903037328.

The previous prime is 1220220210221. The next prime is 1220220210227. The reversal of 1220220210223 is 3220120220221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220220210223 - 2¹ = 1220220210221 is a prime.

It is a super-2 number, since 2×1220220210223² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220220210223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220220210221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87158586438 + ... + 87158586451.

It is an arithmetic number, because the mean of its divisors is an integer number (348634345780).

Almost surely, 2^{1220220210223} is an apocalyptic number.

1220220210223 is a deficient number, since it is larger than the sum of its proper divisors (174317172897).

1220220210223 is an equidigital number, since it uses as much as digits as its factorization.

1220220210223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174317172896.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1220220210223 its reverse (3220120220221), we get a palindrome (4440340430444).

The spelling of 1220220210223 in words is "one trillion, two hundred twenty billion, two hundred twenty million, two hundred ten thousand, two hundred twenty-three".