20102201022210 has 64 divisors (see below), whose sum is σ = 49835621094912. Its totient is φ = 5185557570816.

The previous prime is 20102201022179. The next prime is 20102201022227. The reversal of 20102201022210 is 1222010220102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20102201022210.

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, 52149274 + ... + 52533333.

It is an arithmetic number, because the mean of its divisors is an integer number (778681579608).

Almost surely, 2^{20102201022210} is an apocalyptic number.

20102201022210 is an abundant number, since it is smaller than the sum of its proper divisors (29733420072702).

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

20102201022210 is a wasteful number, since it uses less digits than its factorization.

20102201022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104682827.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20102201022210 its reverse (1222010220102), we get a palindrome (21324211242312).

The spelling of 20102201022210 in words is "twenty trillion, one hundred two billion, two hundred one million, twenty-two thousand, two hundred ten".