20102122212202 has 64 divisors (see below), whose sum is σ = 31968436893696. Its totient is φ = 9460522653120.

The previous prime is 20102122212187. The next prime is 20102122212209. The reversal of 20102122212202 is 20221222120102.

It is a self number, because there is not a number n which added to its sum of digits gives 20102122212202.

It is not an unprimeable number, because it can be changed into a prime (20102122212209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4607406073 + ... + 4607410435.

It is an arithmetic number, because the mean of its divisors is an integer number (499506826464).

Almost surely, 2^{20102122212202} is an apocalyptic number.

20102122212202 is a deficient number, since it is larger than the sum of its proper divisors (11866314681494).

20102122212202 is a wasteful number, since it uses less digits than its factorization.

20102122212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20102122212202 its reverse (20221222120102), we get a palindrome (40323344332304).

The spelling of 20102122212202 in words is "twenty trillion, one hundred two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred two".