2211538064484 has 192 divisors, whose sum is σ = 6544427581440. Its totient is φ = 566975583360.

The previous prime is 2211538064473. The next prime is 2211538064507. The reversal of 2211538064484 is 4844608351122.

It is a super-2 number, since 2×2211538064484² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1849849 + ... + 2800895.

It is an arithmetic number, because the mean of its divisors is an integer number (34085560320).

Almost surely, 2^{2211538064484} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211538064484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3272213790720).

2211538064484 is an abundant number, since it is smaller than the sum of its proper divisors (4332889516956).

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

2211538064484 is a wasteful number, since it uses less digits than its factorization.

2211538064484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951158 (or 951156 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 48.

The spelling of 2211538064484 in words is "two trillion, two hundred eleven billion, five hundred thirty-eight million, sixty-four thousand, four hundred eighty-four".