21223233232211 has 8 divisors (see below), whose sum is σ = 21347205819600. Its totient is φ = 21099405053952.

The previous prime is 21223233232147. The next prime is 21223233232291. The reversal of 21223233232211 is 11223233232212.

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 21223233232211 - 2⁶ = 21223233232147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21223233232291) 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, 35807486 + ... + 36395363.

It is an arithmetic number, because the mean of its divisors is an integer number (2668400727450).

Almost surely, 2^{21223233232211} is an apocalyptic number.

21223233232211 is a deficient number, since it is larger than the sum of its proper divisors (123972587389).

21223233232211 is a wasteful number, since it uses less digits than its factorization.

21223233232211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72204565.

The product of its digits is 10368, while the sum is 29.

Adding to 21223233232211 its reverse (11223233232212), we get a palindrome (32446466464423).

Subtracting from 21223233232211 its reverse (11223233232212), we obtain a palindrome (9999999999999).

The spelling of 21223233232211 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred thirty-three million, two hundred thirty-two thousand, two hundred eleven".