23221201211 has 8 divisors (see below), whose sum is σ = 25008646320. Its totient is φ = 21433927392.

The previous prime is 23221201193. The next prime is 23221201259. The reversal of 23221201211 is 11210212232.

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

It is a cyclic number.

It is not a de Polignac number, because 23221201211 - 2¹⁸ = 23220939067 is a prime.

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 23221201211.

It is not an unprimeable number, because it can be changed into a prime (23221201261) 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, 442685 + ... + 492353.

It is an arithmetic number, because the mean of its divisors is an integer number (3126080790).

Almost surely, 2^23221201211 is an apocalyptic number.

23221201211 is a deficient number, since it is larger than the sum of its proper divisors (1787445109).

23221201211 is a wasteful number, since it uses less digits than its factorization.

23221201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85645.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 23221201211 its reverse (11210212232), we get a palindrome (34431413443).

The spelling of 23221201211 in words is "twenty-three billion, two hundred twenty-one million, two hundred one thousand, two hundred eleven".