912023320220 has 96 divisors (see below), whose sum is σ = 2044815360000. Its totient is φ = 340683231744.

The previous prime is 912023320177. The next prime is 912023320249. The reversal of 912023320220 is 22023320219.

It is a super-2 number, since 2×912023320220² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 912023320220.

It is a congruent number.

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, 55444037 + ... + 55460483.

It is an arithmetic number, because the mean of its divisors is an integer number (21300160000).

Almost surely, 2^912023320220 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 912023320220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1022407680000).

912023320220 is an abundant number, since it is smaller than the sum of its proper divisors (1132792039780).

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

912023320220 is a wasteful number, since it uses less digits than its factorization.

912023320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18547 (or 18545 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 912023320220 its reverse (22023320219), we get a palindrome (934046640439).

The spelling of 912023320220 in words is "nine hundred twelve billion, twenty-three million, three hundred twenty thousand, two hundred twenty".