20102220222210 has 144 divisors (see below), whose sum is σ = 61367175956736. Its totient is φ = 4551851094336.

The previous prime is 20102220222209. The next prime is 20102220222281. The reversal of 20102220222210 is 1222202220102.

20102220222210 is a `hidden beast` number, since 2 + 0 + 10 + 2 + 220 + 222 + 210 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 20828722 + ... + 21772461.

It is an arithmetic number, because the mean of its divisors is an integer number (426160944144).

Almost surely, 2^{20102220222210} is an apocalyptic number.

20102220222210 is an abundant number, since it is smaller than the sum of its proper divisors (41264955734526).

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

20102220222210 is a wasteful number, since it uses less digits than its factorization.

20102220222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42601317 (or 42601307 counting only the distinct ones).

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

Adding to 20102220222210 its reverse (1222202220102), we get a palindrome (21324422442312).

The spelling of 20102220222210 in words is "twenty trillion, one hundred two billion, two hundred twenty million, two hundred twenty-two thousand, two hundred ten".