21112010012110 has 16 divisors (see below), whose sum is σ = 40001703181200. Its totient is φ = 8000340636096.

The previous prime is 21112010012099. The next prime is 21112010012123. The reversal of 21112010012110 is 1121001021112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55557920895 + ... + 55557921274.

It is an arithmetic number, because the mean of its divisors is an integer number (2500106448825).

Almost surely, 2^{21112010012110} is an apocalyptic number.

21112010012110 is a deficient number, since it is larger than the sum of its proper divisors (18889693169090).

21112010012110 is a wasteful number, since it uses less digits than its factorization.

21112010012110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111115842195.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21112010012110 its reverse (1121001021112), we get a palindrome (22233011033222).

The spelling of 21112010012110 in words is "twenty-one trillion, one hundred twelve billion, ten million, twelve thousand, one hundred ten".