21211000110010 has 16 divisors (see below), whose sum is σ = 38262261977856. Its totient is φ = 8466075204048.

The previous prime is 21211000109993. The next prime is 21211000110043. The reversal of 21211000110010 is 1001100011212.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 2290600134 + ... + 2290609393.

It is an arithmetic number, because the mean of its divisors is an integer number (2391391373616).

Almost surely, 2^{21211000110010} is an apocalyptic number.

21211000110010 is a deficient number, since it is larger than the sum of its proper divisors (17051261867846).

21211000110010 is a wasteful number, since it uses less digits than its factorization.

21211000110010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4581209997.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21211000110010 its reverse (1001100011212), we get a palindrome (22212100121222).

The spelling of 21211000110010 in words is "twenty-one trillion, two hundred eleven billion, one hundred ten thousand, ten".