1921560242112 has 280 divisors, whose sum is σ = 6529544024960. Its totient is φ = 547355128320.

The previous prime is 1921560242093. The next prime is 1921560242131. The reversal of 1921560242112 is 2112420651291.

1921560242112 is a `hidden beast` number, since 1 + 9 + 2 + 1 + 5 + 602 + 42 + 1 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1921560242093) and next prime (1921560242131).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11931339 + ... + 12091317.

Almost surely, 2^{1921560242112} is an apocalyptic number.

1921560242112 is a gapful number since it is divisible by the number (12) 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 1921560242112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3264772012480).

1921560242112 is an abundant number, since it is smaller than the sum of its proper divisors (4607983782848).

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

1921560242112 is a wasteful number, since it uses less digits than its factorization.

1921560242112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160341 (or 160322 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 1921560242112 in words is "one trillion, nine hundred twenty-one billion, five hundred sixty million, two hundred forty-two thousand, one hundred twelve".