2221335993744 has 320 divisors, whose sum is σ = 7536203366400. Its totient is φ = 613297930752.

The previous prime is 2221335993691. The next prime is 2221335993787. The reversal of 2221335993744 is 4473995331222.

2221335993744 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 3 + 3 + 599 + 3 + 7 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 11129194 + ... + 11327030.

It is an arithmetic number, because the mean of its divisors is an integer number (23550635520).

Almost surely, 2^{2221335993744} is an apocalyptic number.

2221335993744 is a gapful number since it is divisible by the number (24) 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 2221335993744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3768101683200).

2221335993744 is an abundant number, since it is smaller than the sum of its proper divisors (5314867372656).

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

2221335993744 is a wasteful number, since it uses less digits than its factorization.

2221335993744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197987 (or 197975 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 54.

The spelling of 2221335993744 in words is "two trillion, two hundred twenty-one billion, three hundred thirty-five million, nine hundred ninety-three thousand, seven hundred forty-four".