21000100212110 has 8 divisors (see below), whose sum is σ = 37800180381816. Its totient is φ = 8400040084840.

The previous prime is 21000100212103. The next prime is 21000100212229. The reversal of 21000100212110 is 1121200100012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21000100212091 and 21000100212100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050005010596 + ... + 1050005010615.

It is an arithmetic number, because the mean of its divisors is an integer number (4725022547727).

Almost surely, 2^{21000100212110} is an apocalyptic number.

21000100212110 is a deficient number, since it is larger than the sum of its proper divisors (16800080169706).

21000100212110 is a wasteful number, since it uses less digits than its factorization.

21000100212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100010021218.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21000100212110 its reverse (1121200100012), we get a palindrome (22121300312122).

The spelling of 21000100212110 in words is "twenty-one trillion, one hundred million, two hundred twelve thousand, one hundred ten".