1022231320040 has 128 divisors (see below), whose sum is σ = 2797792358400. Its totient is φ = 328135557120.

The previous prime is 1022231320013. The next prime is 1022231320109. The reversal of 1022231320040 is 400231322201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1022231319994 and 1022231320021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346976 + ... + 1471344.

It is an arithmetic number, because the mean of its divisors is an integer number (21857752800).

Almost surely, 2^{1022231320040} is an apocalyptic number.

1022231320040 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 1022231320040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1398896179200).

1022231320040 is an abundant number, since it is smaller than the sum of its proper divisors (1775561038360).

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

1022231320040 is a wasteful number, since it uses less digits than its factorization.

1022231320040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124595 (or 1124591 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1022231320040 its reverse (400231322201), we get a palindrome (1422462642241).

The spelling of 1022231320040 in words is "one trillion, twenty-two billion, two hundred thirty-one million, three hundred twenty thousand, forty".