21010200212022 has 256 divisors, whose sum is σ = 50060840140800. Its totient is φ = 5754899404800.

The previous prime is 21010200212017. The next prime is 21010200212033. The reversal of 21010200212022 is 22021200201012.

It is a junction number, because it is equal to n+sod(n) for n = 21010200211992 and 21010200212010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11665851522 + ... + 11665853322.

It is an arithmetic number, because the mean of its divisors is an integer number (195550156800).

Almost surely, 2^{21010200212022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21010200212022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25030420070400).

21010200212022 is an abundant number, since it is smaller than the sum of its proper divisors (29050639928778).

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

21010200212022 is a wasteful number, since it uses less digits than its factorization.

21010200212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21010200212022 its reverse (22021200201012), we get a palindrome (43031400413034).

The spelling of 21010200212022 in words is "twenty-one trillion, ten billion, two hundred million, two hundred twelve thousand, twenty-two".