20102211122222 has 32 divisors (see below), whose sum is σ = 30559237954752. Its totient is φ = 9916531640064.

The previous prime is 20102211122171. The next prime is 20102211122233. The reversal of 20102211122222 is 22222111220102.

It is a junction number, because it is equal to n+sod(n) for n = 20102211122194 and 20102211122203.

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 15 ways as a sum of consecutive naturals, for example, 1044966788 + ... + 1044986024.

It is an arithmetic number, because the mean of its divisors is an integer number (954976186086).

Almost surely, 2^{20102211122222} is an apocalyptic number.

20102211122222 is a deficient number, since it is larger than the sum of its proper divisors (10457026832530).

20102211122222 is a wasteful number, since it uses less digits than its factorization.

20102211122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37932.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20102211122222 its reverse (22222111220102), we get a palindrome (42324322342324).

The spelling of 20102211122222 in words is "twenty trillion, one hundred two billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twenty-two".