2111935562500 has 63 divisors (see below), whose sum is σ = 4620594781411. Its totient is φ = 844628900000.

The previous prime is 2111935562483. The next prime is 2111935562501. The reversal of 2111935562500 is 52655391112.

The square root of 2111935562500 is 1453250.

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

It can be written as a sum of positive squares in 10 ways, for example, as 2006149300996 + 105786261504 = 1416386^2 + 325248^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111935562501) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 363309594 + ... + 363315406.

Almost surely, 2^{2111935562500} is an apocalyptic number.

2111935562500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2111935562500 is the 1453250-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111935562500

2111935562500 is an abundant number, since it is smaller than the sum of its proper divisors (2508659218911).

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

2111935562500 is an frugal number, since it uses more digits than its factorization.

2111935562500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11660 (or 5820 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 40.

The spelling of 2111935562500 in words is "two trillion, one hundred eleven billion, nine hundred thirty-five million, five hundred sixty-two thousand, five hundred".