1022091921740 has 96 divisors (see below), whose sum is σ = 2280257179200. Its totient is φ = 383501434880.

The previous prime is 1022091921691. The next prime is 1022091921769. The reversal of 1022091921740 is 471291902201.

It is a junction number, because it is equal to n+sod(n) for n = 1022091921694 and 1022091921703.

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, 249837095 + ... + 249841185.

It is an arithmetic number, because the mean of its divisors is an integer number (23752678950).

Almost surely, 2^{1022091921740} is an apocalyptic number.

1022091921740 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 1022091921740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140128589600).

1022091921740 is an abundant number, since it is smaller than the sum of its proper divisors (1258165257460).

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

1022091921740 is a wasteful number, since it uses less digits than its factorization.

1022091921740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6395 (or 6393 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 1022091921740 in words is "one trillion, twenty-two billion, ninety-one million, nine hundred twenty-one thousand, seven hundred forty".