2011010221 has 32 divisors (see below), whose sum is σ = 2343168000. Its totient is φ = 1707900480.

The previous prime is 2011010203. The next prime is 2011010231. The reversal of 2011010221 is 1220101102.

It is not a de Polignac number, because 2011010221 - 2⁹ = 2011009709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011010198 and 2011010207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011010201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2970135 + ... + 2970811.

It is an arithmetic number, because the mean of its divisors is an integer number (73224000).

Almost surely, 2^2011010221 is an apocalyptic number.

It is an amenable number.

2011010221 is a deficient number, since it is larger than the sum of its proper divisors (332157779).

2011010221 is a wasteful number, since it uses less digits than its factorization.

2011010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

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

The square root of 2011010221 is about 44844.2886107027. The cubic root of 2011010221 is about 1262.2288217487.

Adding to 2011010221 its reverse (1220101102), we get a palindrome (3231111323).

The spelling of 2011010221 in words is "two billion, eleven million, ten thousand, two hundred twenty-one".