20212212200122 has 4 divisors (see below), whose sum is σ = 30318318300186. Its totient is φ = 10106106100060.

The previous prime is 20212212200087. The next prime is 20212212200149. The reversal of 20212212200122 is 22100221221202.

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., 13534386145921 + 6677826054201 = 3678911^2 + 2584149^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20212212200122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053053050029 + ... + 5053053050032.

Almost surely, 2^{20212212200122} is an apocalyptic number.

20212212200122 is a deficient number, since it is larger than the sum of its proper divisors (10106106100064).

20212212200122 is a wasteful number, since it uses less digits than its factorization.

20212212200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106106100063.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20212212200122 its reverse (22100221221202), we get a palindrome (42312433421324).

The spelling of 20212212200122 in words is "twenty trillion, two hundred twelve billion, two hundred twelve million, two hundred thousand, one hundred twenty-two".