22212012011 has 16 divisors (see below), whose sum is σ = 25961072640. Its totient is φ = 18611704800.

The previous prime is 22212012007. The next prime is 22212012061. The reversal of 22212012011 is 11021021222.

It is not a de Polignac number, because 22212012011 - 2² = 22212012007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212012061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142991 + ... + 254696.

It is an arithmetic number, because the mean of its divisors is an integer number (1622567040).

Almost surely, 2^22212012011 is an apocalyptic number.

22212012011 is a deficient number, since it is larger than the sum of its proper divisors (3749060629).

22212012011 is a wasteful number, since it uses less digits than its factorization.

22212012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397874.

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

Adding to 22212012011 its reverse (11021021222), we get a palindrome (33233033233).

The spelling of 22212012011 in words is "twenty-two billion, two hundred twelve million, twelve thousand, eleven".