10000021210110 has 128 divisors (see below), whose sum is σ = 27612838656000. Its totient is φ = 2572237938816.

The previous prime is 10000021210097. The next prime is 10000021210117. The reversal of 10000021210110 is 1101212000001.

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 = 10000021210092 and 10000021210101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000021210117) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7520769 + ... + 8749971.

It is an arithmetic number, because the mean of its divisors is an integer number (215725302000).

Almost surely, 2^{10000021210110} is an apocalyptic number.

10000021210110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10000021210110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13806419328000).

10000021210110 is an abundant number, since it is smaller than the sum of its proper divisors (17612817445890).

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

10000021210110 is a wasteful number, since it uses less digits than its factorization.

10000021210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230287 (or 1230281 counting only the distinct ones).

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

Adding to 10000021210110 its reverse (1101212000001), we get a palindrome (11101233210111).

The spelling of 10000021210110 in words is "ten trillion, twenty-one million, two hundred ten thousand, one hundred ten".