22011212001 has 8 divisors (see below), whose sum is σ = 29829402304. Its totient is φ = 14433581520.

The previous prime is 22011211987. The next prime is 22011212033. The reversal of 22011212001 is 10021211022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22011212001 - 2⁹ = 22011211489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011212081) 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 7 ways as a sum of consecutive naturals, for example, 60139741 + ... + 60140106.

It is an arithmetic number, because the mean of its divisors is an integer number (3728675288).

Almost surely, 2^22011212001 is an apocalyptic number.

It is an amenable number.

22011212001 is a deficient number, since it is larger than the sum of its proper divisors (7818190303).

22011212001 is a wasteful number, since it uses less digits than its factorization.

22011212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120279911.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22011212001 its reverse (10021211022), we get a palindrome (32032423023).

The spelling of 22011212001 in words is "twenty-two billion, eleven million, two hundred twelve thousand, one".