1213332322020 has 384 divisors, whose sum is σ = 4297907367936. Its totient is φ = 248873969664.

The previous prime is 1213332322019. The next prime is 1213332322021. The reversal of 1213332322020 is 202232333121.

It is an interprime number because it is at equal distance from previous prime (1213332322019) and next prime (1213332322021).

It is not an unprimeable number, because it can be changed into a prime (1213332322021) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 409493059 + ... + 409496021.

It is an arithmetic number, because the mean of its divisors is an integer number (11192467104).

Almost surely, 2^{1213332322020} is an apocalyptic number.

1213332322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213332322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2148953683968).

1213332322020 is an abundant number, since it is smaller than the sum of its proper divisors (3084575045916).

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

1213332322020 is a wasteful number, since it uses less digits than its factorization.

1213332322020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059 (or 5057 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1213332322020 its reverse (202232333121), we get a palindrome (1415564655141).

It can be divided in two parts, 1213 and 332322020, that added together give a palindrome (332323233).

The spelling of 1213332322020 in words is "one trillion, two hundred thirteen billion, three hundred thirty-two million, three hundred twenty-two thousand, twenty".