1223023022220 has 24 divisors (see below), whose sum is σ = 3424464462384. Its totient is φ = 326139472576.

The previous prime is 1223023022203. The next prime is 1223023022261. The reversal of 1223023022220 is 222203203221.

It is a super-2 number, since 2×1223023022220² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10191858459 + ... + 10191858578.

It is an arithmetic number, because the mean of its divisors is an integer number (142686019266).

Almost surely, 2^{1223023022220} is an apocalyptic number.

1223023022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223023022220 is an abundant number, since it is smaller than the sum of its proper divisors (2201441440164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223023022220 is a wasteful number, since it uses less digits than its factorization.

1223023022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20383717049 (or 20383717047 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 1223023022220 its reverse (222203203221), we get a palindrome (1445226225441).

The spelling of 1223023022220 in words is "one trillion, two hundred twenty-three billion, twenty-three million, twenty-two thousand, two hundred twenty".