21220222000022 has 16 divisors (see below), whose sum is σ = 31835983506432. Its totient is φ = 10608227660520.

The previous prime is 21220222000001. The next prime is 21220222000037. The reversal of 21220222000022 is 22000022202212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482398313 + ... + 482442299.

It is an arithmetic number, because the mean of its divisors is an integer number (1989748969152).

Almost surely, 2^{21220222000022} is an apocalyptic number.

21220222000022 is a deficient number, since it is larger than the sum of its proper divisors (10615761506410).

21220222000022 is a wasteful number, since it uses less digits than its factorization.

21220222000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81323.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 21220222000022 its reverse (22000022202212), we get a palindrome (43220244202234).

The spelling of 21220222000022 in words is "twenty-one trillion, two hundred twenty billion, two hundred twenty-two million, twenty-two", and thus it is an aban number.