20102222021222 has 16 divisors (see below), whose sum is σ = 32930653330944. Its totient is φ = 9127343589000.

The previous prime is 20102222021209. The next prime is 20102222021243. The reversal of 20102222021222 is 22212022220102.

It is a super-2 number, since 2×20102222021222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20102222021194 and 20102222021203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501482354 + ... + 501522437.

It is an arithmetic number, because the mean of its divisors is an integer number (2058165833184).

Almost surely, 2^{20102222021222} is an apocalyptic number.

20102222021222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20102222021222 is a deficient number, since it is larger than the sum of its proper divisors (12828431309722).

20102222021222 is a wasteful number, since it uses less digits than its factorization.

20102222021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003005715.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20102222021222 its reverse (22212022220102), we get a palindrome (42314244241324).

The spelling of 20102222021222 in words is "twenty trillion, one hundred two billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty-two".