12223210311020 has 24 divisors (see below), whose sum is σ = 25682417140464. Its totient is φ = 4886679269696.

The previous prime is 12223210310999. The next prime is 12223210311023. The reversal of 12223210311020 is 2011301232221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12223210310983 and 12223210311001.

It is not an unprimeable number, because it can be changed into a prime (12223210311023) 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, 162764942 + ... + 162840021.

It is an arithmetic number, because the mean of its divisors is an integer number (1070100714186).

Almost surely, 2^{12223210311020} is an apocalyptic number.

12223210311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12223210311020 is an abundant number, since it is smaller than the sum of its proper divisors (13459206829444).

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

12223210311020 is a wasteful number, since it uses less digits than its factorization.

12223210311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325606849 (or 325606847 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12223210311020 its reverse (2011301232221), we get a palindrome (14234511543241).

The spelling of 12223210311020 in words is "twelve trillion, two hundred twenty-three billion, two hundred ten million, three hundred eleven thousand, twenty".