21101101012010 has 32 divisors (see below), whose sum is σ = 39981717210240. Its totient is φ = 7996069956672.

The previous prime is 21101101012003. The next prime is 21101101012037. The reversal of 21101101012010 is 1021010110112.

It is a junction number, because it is equal to n+sod(n) for n = 21101101011982 and 21101101012000.

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, 10556027 + ... + 12394833.

It is an arithmetic number, because the mean of its divisors is an integer number (1249428662820).

Almost surely, 2^{21101101012010} is an apocalyptic number.

21101101012010 is a deficient number, since it is larger than the sum of its proper divisors (18880616198230).

21101101012010 is a wasteful number, since it uses less digits than its factorization.

21101101012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899230.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 21101101012010 its reverse (1021010110112), we get a palindrome (22122111122122).

The spelling of 21101101012010 in words is "twenty-one trillion, one hundred one billion, one hundred one million, twelve thousand, ten".