1211051828484 has 81 divisors (see below), whose sum is σ = 3252238669407. Its totient is φ = 379902613248.

The previous prime is 1211051828477. The next prime is 1211051828543. The reversal of 1211051828484 is 4848281501121.

The square root of 1211051828484 is 1100478.

It is a perfect power (a square), and thus also a powerful number.

1211051828484 is a `hidden beast` number, since 1 + 2 + 110 + 51 + 8 + 2 + 8 + 484 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 73143202500 + 1137908625984 = 270450^2 + 1066728^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 112243362 + ... + 112254150.

Almost surely, 2^{1211051828484} is an apocalyptic number.

1211051828484 is the 1100478-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1211051828484

1211051828484 is an abundant number, since it is smaller than the sum of its proper divisors (2041186840923).

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

1211051828484 is an equidigital number, since it uses as much as digits as its factorization.

1211051828484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21622 (or 10811 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The spelling of 1211051828484 in words is "one trillion, two hundred eleven billion, fifty-one million, eight hundred twenty-eight thousand, four hundred eighty-four".