21222011200022 has 16 divisors (see below), whose sum is σ = 32006392973520. Its totient is φ = 10553242540032.

The previous prime is 21222011200021. The next prime is 21222011200087. The reversal of 21222011200022 is 22000211022212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222011200021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5783372 + ... + 8711567.

It is an arithmetic number, because the mean of its divisors is an integer number (2000399560845).

Almost surely, 2^{21222011200022} is an apocalyptic number.

21222011200022 is a deficient number, since it is larger than the sum of its proper divisors (10784381773498).

21222011200022 is a wasteful number, since it uses less digits than its factorization.

21222011200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14498927.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21222011200022 its reverse (22000211022212), we get a palindrome (43222222222234).

The spelling of 21222011200022 in words is "twenty-one trillion, two hundred twenty-two billion, eleven million, two hundred thousand, twenty-two".