21100233322011 has 8 divisors (see below), whose sum is σ = 28133739146304. Its totient is φ = 14066774856200.

The previous prime is 21100233321991. The next prime is 21100233322037. The reversal of 21100233322011 is 11022333200112.

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 21100233322011 - 2¹⁰ = 21100233320987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21100233322211) 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, 10786641 + ... + 12591746.

It is an arithmetic number, because the mean of its divisors is an integer number (3516717393288).

Almost surely, 2^{21100233322011} is an apocalyptic number.

21100233322011 is a deficient number, since it is larger than the sum of its proper divisors (7033505824293).

21100233322011 is a wasteful number, since it uses less digits than its factorization.

21100233322011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23679241.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21100233322011 its reverse (11022333200112), we get a palindrome (32122566522123).

The spelling of 21100233322011 in words is "twenty-one trillion, one hundred billion, two hundred thirty-three million, three hundred twenty-two thousand, eleven".