2011210120 has 16 divisors (see below), whose sum is σ = 4525222860. Its totient is φ = 804484032.

The previous prime is 2011210093. The next prime is 2011210129. The reversal of 2011210120 is 210121102.

It can be written as a sum of positive squares in 2 ways, for example, as 2010446244 + 763876 = 44838^2 + 874^2 .

It is a super-2 number, since 2×2011210120² = 8089932293580828800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2011210097 and 2011210106.

It is not an unprimeable number, because it can be changed into a prime (2011210129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25140087 + ... + 25140166.

Almost surely, 2^2011210120 is an apocalyptic number.

2011210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011210120 is an abundant number, since it is smaller than the sum of its proper divisors (2514012740).

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

2011210120 is a wasteful number, since it uses less digits than its factorization.

2011210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50280264 (or 50280260 counting only the distinct ones).

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

The square root of 2011210120 is about 44846.5173675727. The cubic root of 2011210120 is about 1262.2706431704.

Adding to 2011210120 its reverse (210121102), we get a palindrome (2221331222).

The spelling of 2011210120 in words is "two billion, eleven million, two hundred ten thousand, one hundred twenty".