20002102222222 has 64 divisors (see below), whose sum is σ = 32848556175360. Its totient is φ = 9097850336256.

The previous prime is 20002102222217. The next prime is 20002102222231. The reversal of 20002102222222 is 22222220120002.

20002102222222 is a modest number, since divided by 2222222 gives 2000210 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 20002102222222.

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, 116963263 + ... + 117134149.

It is an arithmetic number, because the mean of its divisors is an integer number (513258690240).

Almost surely, 2^{20002102222222} is an apocalyptic number.

20002102222222 is a deficient number, since it is larger than the sum of its proper divisors (12846453953138).

20002102222222 is a wasteful number, since it uses less digits than its factorization.

20002102222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171865.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20002102222222 its reverse (22222220120002), we get a palindrome (42224322342224).

The spelling of 20002102222222 in words is "twenty trillion, two billion, one hundred two million, two hundred twenty-two thousand, two hundred twenty-two".