20102211122194 has 8 divisors (see below), whose sum is σ = 30163653790668. Its totient is φ = 10047659858640.

The previous prime is 20102211122171. The next prime is 20102211122233. The reversal of 20102211122194 is 49122111220102.

It can be written as a sum of positive squares in 2 ways, for example, as 11065183114969 + 9037028007225 = 3326437^2 + 3006165^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1722843937 + ... + 1722855604.

Almost surely, 2^{20102211122194} is an apocalyptic number.

20102211122194 is a deficient number, since it is larger than the sum of its proper divisors (10061442668474).

20102211122194 is a wasteful number, since it uses less digits than its factorization.

20102211122194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445702460.

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 20102211122194 its reverse (49122111220102), we get a palindrome (69224322342296).

The spelling of 20102211122194 in words is "twenty trillion, one hundred two billion, two hundred eleven million, one hundred twenty-two thousand, one hundred ninety-four".