20122112112202 has 16 divisors (see below), whose sum is σ = 30597136089480. Its totient is φ = 9924002270208.

The previous prime is 20122112112163. The next prime is 20122112112211. The reversal of 20122112112202 is 20221121122102.

It can be written as a sum of positive squares in 4 ways, for example, as 17295708933721 + 2826403178481 = 4158811^2 + 1681191^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20122112112202.

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, 233837127 + ... + 233923162.

Almost surely, 2^{20122112112202} is an apocalyptic number.

20122112112202 is a deficient number, since it is larger than the sum of its proper divisors (10475023977278).

20122112112202 is a wasteful number, since it uses less digits than its factorization.

20122112112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467760585.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20122112112202 its reverse (20221121122102), we get a palindrome (40343233234304).

The spelling of 20122112112202 in words is "twenty trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twelve thousand, two hundred two".