21110120002011 has 8 divisors (see below), whose sum is σ = 28147596885504. Its totient is φ = 14073028226600.

The previous prime is 21110120001983. The next prime is 21110120002021. The reversal of 21110120002011 is 11020002101112.

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 21110120002011 - 2⁵ = 21110120001979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21110120002021) 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, 96149091 + ... + 96368396.

It is an arithmetic number, because the mean of its divisors is an integer number (3518449610688).

Almost surely, 2^{21110120002011} is an apocalyptic number.

21110120002011 is a deficient number, since it is larger than the sum of its proper divisors (7037476883493).

21110120002011 is a wasteful number, since it uses less digits than its factorization.

21110120002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192554041.

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

Adding to 21110120002011 its reverse (11020002101112), we get a palindrome (32130122103123).

The spelling of 21110120002011 in words is "twenty-one trillion, one hundred ten billion, one hundred twenty million, two thousand, eleven".