21220222001002 has 16 divisors (see below), whose sum is σ = 33486031216800. Its totient is φ = 10070613829360.

The previous prime is 21220222000963. The next prime is 21220222001023. The reversal of 21220222001002 is 20010022202212.

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, 3100555024 + ... + 3100561867.

It is an arithmetic number, because the mean of its divisors is an integer number (2092876951050).

Almost surely, 2^{21220222001002} is an apocalyptic number.

21220222001002 is a deficient number, since it is larger than the sum of its proper divisors (12265809215798).

21220222001002 is a wasteful number, since it uses less digits than its factorization.

21220222001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201116981.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21220222001002 its reverse (20010022202212), we get a palindrome (41230244203214).

The spelling of 21220222001002 in words is "twenty-one trillion, two hundred twenty billion, two hundred twenty-two million, one thousand, two".