1012275221760 has 1440 divisors, whose sum is σ = 4231021132800. Its totient is φ = 228368056320.

The previous prime is 1012275221759. The next prime is 1012275221773. The reversal of 1012275221760 is 671225722101.

1012275221760 is a `hidden beast` number, since 1 + 0 + 122 + 7 + 522 + 1 + 7 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a super-2 number, since 2×1012275221760² (a number of 25 digits) contains 22 as substring.

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 159 ways as a sum of consecutive naturals, for example, 2113309201 + ... + 2113309679.

It is an arithmetic number, because the mean of its divisors is an integer number (2938209120).

Almost surely, 2^{1012275221760} is an apocalyptic number.

1012275221760 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 1012275221760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2115510566400).

1012275221760 is an abundant number, since it is smaller than the sum of its proper divisors (3218745911040).

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

1012275221760 is a wasteful number, since it uses less digits than its factorization.

1012275221760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 1012275221760 in words is "one trillion, twelve billion, two hundred seventy-five million, two hundred twenty-one thousand, seven hundred sixty".