20122200002122 has 4 divisors (see below), whose sum is σ = 30183300003186. Its totient is φ = 10061100001060.

The previous prime is 20122200002117. The next prime is 20122200002129. The reversal of 20122200002122 is 22120000222102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16735389173881 + 3386810828241 = 4090891^2 + 1840329^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20122200002096 and 20122200002105.

It is not an unprimeable number, because it can be changed into a prime (20122200002129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030550000529 + ... + 5030550000532.

Almost surely, 2^{20122200002122} is an apocalyptic number.

20122200002122 is a deficient number, since it is larger than the sum of its proper divisors (10061100001064).

20122200002122 is a wasteful number, since it uses less digits than its factorization.

20122200002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061100001063.

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

Adding to 20122200002122 its reverse (22120000222102), we get a palindrome (42242200224224).

The spelling of 20122200002122 in words is "twenty trillion, one hundred twenty-two billion, two hundred million, two thousand, one hundred twenty-two".