20021220102202 has 16 divisors (see below), whose sum is σ = 33086372737824. Its totient is φ = 9010450090000.

The previous prime is 20021220102181. The next prime is 20021220102203. The reversal of 20021220102202 is 20220102212002.

It is not an unprimeable number, because it can be changed into a prime (20021220102203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4505222824 + ... + 4505227267.

It is an arithmetic number, because the mean of its divisors is an integer number (2067898296114).

Almost surely, 2^{20021220102202} is an apocalyptic number.

20021220102202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021220102202 is a deficient number, since it is larger than the sum of its proper divisors (13065152635622).

20021220102202 is a wasteful number, since it uses less digits than its factorization.

20021220102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010450205.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20021220102202 its reverse (20220102212002), we get a palindrome (40241322314204).

The spelling of 20021220102202 in words is "twenty trillion, twenty-one billion, two hundred twenty million, one hundred two thousand, two hundred two".