21112220011010 has 32 divisors (see below), whose sum is σ = 38273363602560. Its totient is φ = 8384729940352.

The previous prime is 21112220010967. The next prime is 21112220011063. The reversal of 21112220011010 is 1011002221112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7956659 + ... + 10272918.

It is an arithmetic number, because the mean of its divisors is an integer number (1196042612580).

Almost surely, 2^{21112220011010} is an apocalyptic number.

21112220011010 is a deficient number, since it is larger than the sum of its proper divisors (17161143591550).

21112220011010 is a wasteful number, since it uses less digits than its factorization.

21112220011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18230410.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21112220011010 its reverse (1011002221112), we get a palindrome (22123222232122).

The spelling of 21112220011010 in words is "twenty-one trillion, one hundred twelve billion, two hundred twenty million, eleven thousand, ten".