2010221091 has 32 divisors (see below), whose sum is σ = 3136734720. Its totient is φ = 1269857952.

The previous prime is 2010221089. The next prime is 2010221093. The reversal of 2010221091 is 1901220102.

2010221091 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2010221089) and next prime (2010221093).

It is not a de Polignac number, because 2010221091 - 2¹ = 2010221089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2010221093) 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, 51321 + ... + 81573.

It is an arithmetic number, because the mean of its divisors is an integer number (98022960).

Almost surely, 2^2010221091 is an apocalyptic number.

2010221091 is a deficient number, since it is larger than the sum of its proper divisors (1126513629).

2010221091 is a wasteful number, since it uses less digits than its factorization.

2010221091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30392 (or 30386 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 2010221091 is about 44835.4891910415. The cubic root of 2010221091 is about 1262.0636986123.

Adding to 2010221091 its reverse (1901220102), we get a palindrome (3911441193).

The spelling of 2010221091 in words is "two billion, ten million, two hundred twenty-one thousand, ninety-one".