1213022221024 has 24 divisors (see below), whose sum is σ = 2452681756728. Its totient is φ = 590118917760.

The previous prime is 1213022221013. The next prime is 1213022221039. The reversal of 1213022221024 is 4201222203121.

It is a junction number, because it is equal to n+sod(n) for n = 1213022220986 and 1213022221004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512254822 + ... + 512257189.

It is an arithmetic number, because the mean of its divisors is an integer number (102195073197).

Almost surely, 2^{1213022221024} is an apocalyptic number.

It is an amenable number.

1213022221024 is an abundant number, since it is smaller than the sum of its proper divisors (1239659535704).

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

1213022221024 is a wasteful number, since it uses less digits than its factorization.

1213022221024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024512058 (or 1024512050 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1213022221024 its reverse (4201222203121), we get a palindrome (5414244424145).

The spelling of 1213022221024 in words is "one trillion, two hundred thirteen billion, twenty-two million, two hundred twenty-one thousand, twenty-four".