1023995838222 has 256 divisors, whose sum is σ = 2724203059200. Its totient is φ = 278935695360.

The previous prime is 1023995838167. The next prime is 1023995838247. The reversal of 1023995838222 is 2228385993201.

1023995838222 is a `hidden beast` number, since 1 + 0 + 2 + 39 + 9 + 583 + 8 + 2 + 22 = 666.

It is a super-2 number, since 2×1023995838222² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 651810697 + ... + 651812267.

It is an arithmetic number, because the mean of its divisors is an integer number (10641418200).

Almost surely, 2^{1023995838222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023995838222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1362101529600).

1023995838222 is an abundant number, since it is smaller than the sum of its proper divisors (1700207220978).

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

1023995838222 is a wasteful number, since it uses less digits than its factorization.

1023995838222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328 (or 2322 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 1023995838222 in words is "one trillion, twenty-three billion, nine hundred ninety-five million, eight hundred thirty-eight thousand, two hundred twenty-two".