2121011 has 2 divisors, whose sum is σ = 2121012. Its totient is φ = 2121010.

The previous prime is 2120981. The next prime is 2121017. The reversal of 2121011 is 1101212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121011 - 2⁶ = 2120947 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2121011.

It is not a weakly prime, because it can be changed into another prime (2121017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060505 + 1060506.

It is an arithmetic number, because the mean of its divisors is an integer number (1060506).

2^2121011 is an apocalyptic number.

2121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121011 is an equidigital number, since it uses as much as digits as its factorization.

2121011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2121011 is about 1456.3691153001. The cubic root of 2121011 is about 128.4835833217.

Adding to 2121011 its reverse (1101212), we get a palindrome (3222223).

The spelling of 2121011 in words is "two million, one hundred twenty-one thousand, eleven".