21222010001010 has 256 divisors, whose sum is σ = 66915234570240. Its totient is φ = 4182200709120.

The previous prime is 21222010000981. The next prime is 21222010001021. The reversal of 21222010001010 is 1010001022212.

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, 801514 + ... + 6564026.

It is an arithmetic number, because the mean of its divisors is an integer number (261387635040).

Almost surely, 2^{21222010001010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21222010001010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33457617285120).

21222010001010 is an abundant number, since it is smaller than the sum of its proper divisors (45693224569230).

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

21222010001010 is a wasteful number, since it uses less digits than its factorization.

21222010001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5762633.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21222010001010 its reverse (1010001022212), we get a palindrome (22232011023222).

The spelling of 21222010001010 in words is "twenty-one trillion, two hundred twenty-two billion, ten million, one thousand, ten".