20100001210110 has 96 divisors (see below), whose sum is σ = 53947091607552. Its totient is φ = 5186973827520.

The previous prime is 20100001210067. The next prime is 20100001210111. The reversal of 20100001210110 is 1101210000102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20100001210092 and 20100001210101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100001210111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207881997 + ... + 207978663.

It is an arithmetic number, because the mean of its divisors is an integer number (561948870912).

Almost surely, 2^{20100001210110} is an apocalyptic number.

20100001210110 is an abundant number, since it is smaller than the sum of its proper divisors (33847090397442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100001210110 is a wasteful number, since it uses less digits than its factorization.

20100001210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171238 (or 171235 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20100001210110 its reverse (1101210000102), we get a palindrome (21201211210212).

The spelling of 20100001210110 in words is "twenty trillion, one hundred billion, one million, two hundred ten thousand, one hundred ten".