2122212011 has 4 divisors (see below), whose sum is σ = 2233907400. Its totient is φ = 2010516624.

The previous prime is 2122211989. The next prime is 2122212013. The reversal of 2122212011 is 1102122212.

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 2122212011 - 2¹⁴ = 2122195627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122212013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55847666 + ... + 55847703.

It is an arithmetic number, because the mean of its divisors is an integer number (558476850).

Almost surely, 2^2122212011 is an apocalyptic number.

2122212011 is a deficient number, since it is larger than the sum of its proper divisors (111695389).

2122212011 is a wasteful number, since it uses less digits than its factorization.

2122212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111695388.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2122212011 is about 46067.4723747679. The cubic root of 2122212011 is about 1285.0782979033.

Adding to 2122212011 its reverse (1102122212), we get a palindrome (3224334223).

It can be divided in two parts, 21222 and 12011, that added together give a palindrome (33233).

The spelling of 2122212011 in words is "two billion, one hundred twenty-two million, two hundred twelve thousand, eleven".