1222323140424 has 128 divisors (see below), whose sum is σ = 3168574295040. Its totient is φ = 392635579392.

The previous prime is 1222323140419. The next prime is 1222323140431. The reversal of 1222323140424 is 4240413232221.

It is a super-3 number, since 3×1222323140424³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222323140391 and 1222323140400.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38995062 + ... + 39026394.

It is an arithmetic number, because the mean of its divisors is an integer number (24754486680).

Almost surely, 2^{1222323140424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222323140424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584287147520).

1222323140424 is an abundant number, since it is smaller than the sum of its proper divisors (1946251154616).

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

1222323140424 is a wasteful number, since it uses less digits than its factorization.

1222323140424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31799 (or 31795 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1222323140424 its reverse (4240413232221), we get a palindrome (5462736372645).

The spelling of 1222323140424 in words is "one trillion, two hundred twenty-two billion, three hundred twenty-three million, one hundred forty thousand, four hundred twenty-four".