21322110021222 has 8 divisors (see below), whose sum is σ = 42644220042456. Its totient is φ = 7107370007072.

The previous prime is 21322110021197. The next prime is 21322110021259. The reversal of 21322110021222 is 22212001122312.

It is a sphenic number, since it is the product of 3 distinct primes.

21322110021222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1776842501763 + ... + 1776842501774.

It is an arithmetic number, because the mean of its divisors is an integer number (5330527505307).

Almost surely, 2^{21322110021222} is an apocalyptic number.

21322110021222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21322110021222 is a wasteful number, since it uses less digits than its factorization.

21322110021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553685003542.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21322110021222 its reverse (22212001122312), we get a palindrome (43534111143534).

The spelling of 21322110021222 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred ten million, twenty-one thousand, two hundred twenty-two".