21022101110010 has 512 divisors, whose sum is σ = 69590327869440. Its totient is φ = 3956095503360.

The previous prime is 21022101109981. The next prime is 21022101110117. The reversal of 21022101110010 is 1001110122012.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 192527811 + ... + 192636969.

It is an arithmetic number, because the mean of its divisors is an integer number (135918609120).

Almost surely, 2^{21022101110010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21022101110010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34795163934720).

21022101110010 is an abundant number, since it is smaller than the sum of its proper divisors (48568226759430).

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

21022101110010 is a wasteful number, since it uses less digits than its factorization.

21022101110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109275 (or 109253 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21022101110010 its reverse (1001110122012), we get a palindrome (22023211232022).

The spelling of 21022101110010 in words is "twenty-one trillion, twenty-two billion, one hundred one million, one hundred ten thousand, ten".