2110011100020 has 48 divisors (see below), whose sum is σ = 6564478979520. Its totient is φ = 562669626528.

The previous prime is 2110011100013. The next prime is 2110011100027. The reversal of 2110011100020 is 200011100112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2110011100013) and next prime (2110011100027).

It is a super-2 number, since 2×2110011100020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2110011099975 and 2110011100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110011100027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953713442 + ... + 1953714521.

It is an arithmetic number, because the mean of its divisors is an integer number (136759978740).

Almost surely, 2^{2110011100020} is an apocalyptic number.

2110011100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2110011100020 is an abundant number, since it is smaller than the sum of its proper divisors (4454467879500).

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

2110011100020 is a wasteful number, since it uses less digits than its factorization.

2110011100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907427981 (or 3907427973 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2110011100020 its reverse (200011100112), we get a palindrome (2310022200132).

The spelling of 2110011100020 in words is "two trillion, one hundred ten billion, eleven million, one hundred thousand, twenty".