21120010210011 has 8 divisors (see below), whose sum is σ = 28160456628304. Its totient is φ = 14079785299200.

The previous prime is 21120010210007. The next prime is 21120010210067. The reversal of 21120010210011 is 11001201002112.

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

It is not a de Polignac number, because 21120010210011 - 2² = 21120010210007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21120010215011) 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, 55154266 + ... + 55535871.

It is an arithmetic number, because the mean of its divisors is an integer number (3520057078538).

Almost surely, 2^{21120010210011} is an apocalyptic number.

21120010210011 is a deficient number, since it is larger than the sum of its proper divisors (7040446418293).

21120010210011 is a wasteful number, since it uses less digits than its factorization.

21120010210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110753741.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21120010210011 its reverse (11001201002112), we get a palindrome (32121211212123).

The spelling of 21120010210011 in words is "twenty-one trillion, one hundred twenty billion, ten million, two hundred ten thousand, eleven".