2122420211 has 4 divisors (see below), whose sum is σ = 2138622024. Its totient is φ = 2106218400.

The previous prime is 2122420193. The next prime is 2122420217. The reversal of 2122420211 is 1120242212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2122420211 - 2⁶ = 2122420147 is a prime.

It is a super-2 number, since 2×2122420211² = 9009335104122569042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122420211.

It is not an unprimeable number, because it can be changed into a prime (2122420217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8100710 + ... + 8100971.

It is an arithmetic number, because the mean of its divisors is an integer number (534655506).

Almost surely, 2^2122420211 is an apocalyptic number.

2122420211 is a deficient number, since it is larger than the sum of its proper divisors (16201813).

2122420211 is a wasteful number, since it uses less digits than its factorization.

2122420211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16201812.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2122420211 is about 46069.7320482766. The cubic root of 2122420211 is about 1285.1203208101.

Adding to 2122420211 its reverse (1120242212), we get a palindrome (3242662423).

The spelling of 2122420211 in words is "two billion, one hundred twenty-two million, four hundred twenty thousand, two hundred eleven".