1223300243220 has 48 divisors (see below), whose sum is σ = 3736626199488. Its totient is φ = 296557634560.

The previous prime is 1223300243189. The next prime is 1223300243227. The reversal of 1223300243220 is 223420033221.

It is a super-2 number, since 2×1223300243220² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223300243227) 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, 926741949 + ... + 926743268.

It is an arithmetic number, because the mean of its divisors is an integer number (77846379156).

Almost surely, 2^{1223300243220} is an apocalyptic number.

1223300243220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223300243220 is an abundant number, since it is smaller than the sum of its proper divisors (2513325956268).

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

1223300243220 is a wasteful number, since it uses less digits than its factorization.

1223300243220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853485240 (or 1853485238 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 1223300243220 its reverse (223420033221), we get a palindrome (1446720276441).

The spelling of 1223300243220 in words is "one trillion, two hundred twenty-three billion, three hundred million, two hundred forty-three thousand, two hundred twenty".