2111102020000 has 60 divisors (see below), whose sum is σ = 5193627683706. Its totient is φ = 844440800000.

The previous prime is 2111102019953. The next prime is 2111102020009. The reversal of 2111102020000 is 202011112.

It can be written as a sum of positive squares in 5 ways, for example, as 487220752144 + 1623881267856 = 698012^2 + 1274316^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2111102020009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 52757551 + ... + 52797550.

Almost surely, 2^{2111102020000} is an apocalyptic number.

2111102020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111102020000 is an abundant number, since it is smaller than the sum of its proper divisors (3082525663706).

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

2111102020000 is an equidigital number, since it uses as much as digits as its factorization.

2111102020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105555131 (or 105555108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2111102020000 its reverse (202011112), we get a palindrome (2111304031112).

The spelling of 2111102020000 in words is "two trillion, one hundred eleven billion, one hundred two million, twenty thousand".