2122011 has 8 divisors (see below), whose sum is σ = 3143760. Its totient is φ = 1414656.

The previous prime is 2122009. The next prime is 2122013. The reversal of 2122011 is 1102212.

It is an interprime number because it is at equal distance from previous prime (2122009) and next prime (2122013).

It is not a de Polignac number, because 2122011 - 2¹ = 2122009 is a prime.

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 = 2121984 and 2122002.

It is not an unprimeable number, because it can be changed into a prime (2122013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39270 + ... + 39323.

It is an arithmetic number, because the mean of its divisors is an integer number (392970).

2^2122011 is an apocalyptic number.

2122011 is a deficient number, since it is larger than the sum of its proper divisors (1021749).

2122011 is an equidigital number, since it uses as much as digits as its factorization.

2122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78602 (or 78596 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2122011 is about 1456.7123944005. The cubic root of 2122011 is about 128.5037723410.

Adding to 2122011 its reverse (1102212), we get a palindrome (3224223).

The spelling of 2122011 in words is "two million, one hundred twenty-two thousand, eleven".