2111352212640 has 144 divisors (see below), whose sum is σ = 7310339122464. Its totient is φ = 511842946560.

The previous prime is 2111352212591. The next prime is 2111352212699. The reversal of 2111352212640 is 462122531112.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2111352212598 and 2111352212607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18118162 + ... + 18234321.

It is an arithmetic number, because the mean of its divisors is an integer number (50766243906).

Almost surely, 2^{2111352212640} is an apocalyptic number.

2111352212640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111352212640 is an abundant number, since it is smaller than the sum of its proper divisors (5198986909824).

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

2111352212640 is a wasteful number, since it uses less digits than its factorization.

2111352212640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36352523 (or 36352504 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 2111352212640 its reverse (462122531112), we get a palindrome (2573474743752).

The spelling of 2111352212640 in words is "two trillion, one hundred eleven billion, three hundred fifty-two million, two hundred twelve thousand, six hundred forty".