2011211110000 has 50 divisors (see below), whose sum is σ = 4869343242632. Its totient is φ = 804484440000.

The previous prime is 2011211109997. The next prime is 2011211110021. The reversal of 2011211110000 is 111121102.

It is a tau number, because it is divible by the number of its divisors (50).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 100550556 + ... + 100570555.

Almost surely, 2^{2011211110000} is an apocalyptic number.

2011211110000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011211110000 is an abundant number, since it is smaller than the sum of its proper divisors (2858132132632).

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

2011211110000 is an equidigital number, since it uses as much as digits as its factorization.

2011211110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201121139 (or 201121118 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2011211110000 its reverse (111121102), we get a palindrome (2011322231102).

The spelling of 2011211110000 in words is "two trillion, eleven billion, two hundred eleven million, one hundred ten thousand".