2215239985140 has 1152 divisors, whose sum is σ = 8416747680768. Its totient is φ = 423540817920.

The previous prime is 2215239985139. The next prime is 2215239985159. The reversal of 2215239985140 is 415899325122.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 6275467204 + ... + 6275467556.

It is an arithmetic number, because the mean of its divisors is an integer number (7306204584).

Almost surely, 2^{2215239985140} is an apocalyptic number.

2215239985140 is a gapful number since it is divisible by the number (20) 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 2215239985140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4208373840384).

2215239985140 is an abundant number, since it is smaller than the sum of its proper divisors (6201507695628).

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

2215239985140 is a wasteful number, since it uses less digits than its factorization.

2215239985140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 2215239985140 in words is "two trillion, two hundred fifteen billion, two hundred thirty-nine million, nine hundred eighty-five thousand, one hundred forty".