20002212222210 has 96 divisors (see below), whose sum is σ = 53431333143552. Its totient is φ = 5187817860480.

The previous prime is 20002212222203. The next prime is 20002212222211. The reversal of 20002212222210 is 1222221220002.

20002212222210 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 221 + 222 + 221 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20002212222211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7770007 + ... + 10018853.

It is an arithmetic number, because the mean of its divisors is an integer number (556576386912).

Almost surely, 2^{20002212222210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20002212222210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26715666571776).

20002212222210 is an abundant number, since it is smaller than the sum of its proper divisors (33429120921342).

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

20002212222210 is a wasteful number, since it uses less digits than its factorization.

20002212222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251568 (or 2251565 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20002212222210 its reverse (1222221220002), we get a palindrome (21224433442212).

It can be divided in two parts, 20002 and 212222210, that added together give a palindrome (212242212).

The spelling of 20002212222210 in words is "twenty trillion, two billion, two hundred twelve million, two hundred twenty-two thousand, two hundred ten".