21010434500022 has 192 divisors, whose sum is σ = 49294454356224. Its totient is φ = 5918892687360.

The previous prime is 21010434500021. The next prime is 21010434500023. The reversal of 21010434500022 is 22000543401012.

It is an interprime number because it is at equal distance from previous prime (21010434500021) and next prime (21010434500023).

It is a junction number, because it is equal to n+sod(n) for n = 21010434499965 and 21010434500001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010434500021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 967632238 + ... + 967653950.

It is an arithmetic number, because the mean of its divisors is an integer number (256741949772).

Almost surely, 2^{21010434500022} is an apocalyptic number.

21010434500022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 21010434500022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24647227178112).

21010434500022 is an abundant number, since it is smaller than the sum of its proper divisors (28284019856202).

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

21010434500022 is a wasteful number, since it uses less digits than its factorization.

21010434500022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22383 (or 22366 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 21010434500022 its reverse (22000543401012), we get a palindrome (43010977901034).

The spelling of 21010434500022 in words is "twenty-one trillion, ten billion, four hundred thirty-four million, five hundred thousand, twenty-two".