21022010010222 has 64 divisors (see below), whose sum is σ = 45709730256960. Its totient is φ = 6406702055424.

The previous prime is 21022010010217. The next prime is 21022010010269. The reversal of 21022010010222 is 22201001022012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23684398 + ... + 24555950.

It is an arithmetic number, because the mean of its divisors is an integer number (714214535265).

Almost surely, 2^{21022010010222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21022010010222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22854865128480).

21022010010222 is an abundant number, since it is smaller than the sum of its proper divisors (24687720246738).

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

21022010010222 is a wasteful number, since it uses less digits than its factorization.

21022010010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874517.

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

Adding to 21022010010222 its reverse (22201001022012), we get a palindrome (43223011032234).

The spelling of 21022010010222 in words is "twenty-one trillion, twenty-two billion, ten million, ten thousand, two hundred twenty-two".