21000120200110 has 8 divisors (see below), whose sum is σ = 37800216360216. Its totient is φ = 8400048080040.

The previous prime is 21000120200107. The next prime is 21000120200159. The reversal of 21000120200110 is 1100202100012.

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 2100012020011 = 21000120200110 / (2 + 1 + 0 + 0 + 0 + 1 + 2 + 0 + 2 + 0 + 0 + 1 + 1 + 0).

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, 1050006009996 + ... + 1050006010015.

It is an arithmetic number, because the mean of its divisors is an integer number (4725027045027).

Almost surely, 2^{21000120200110} is an apocalyptic number.

21000120200110 is a deficient number, since it is larger than the sum of its proper divisors (16800096160106).

21000120200110 is a wasteful number, since it uses less digits than its factorization.

21000120200110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100012020018.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21000120200110 its reverse (1100202100012), we get a palindrome (22100322300122).

The spelling of 21000120200110 in words is "twenty-one trillion, one hundred twenty million, two hundred thousand, one hundred ten".