21232210113211 has 8 divisors (see below), whose sum is σ = 21443361136704. Its totient is φ = 21021077347200.

The previous prime is 21232210113187. The next prime is 21232210113223. The reversal of 21232210113211 is 11231101223212.

It is a happy number.

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 21232210113211 - 2⁷ = 21232210113083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21232210113281) 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, 2220990 + ... + 6884563.

It is an arithmetic number, because the mean of its divisors is an integer number (2680420142088).

Almost surely, 2^{21232210113211} is an apocalyptic number.

21232210113211 is a deficient number, since it is larger than the sum of its proper divisors (211151023493).

21232210113211 is a wasteful number, since it uses less digits than its factorization.

21232210113211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9128741.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21232210113211 its reverse (11231101223212), we get a palindrome (32463311336423).

The spelling of 21232210113211 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred ten million, one hundred thirteen thousand, two hundred eleven".