20121222000122 has 4 divisors (see below), whose sum is σ = 30181833000186. Its totient is φ = 10060611000060.

The previous prime is 20121222000119. The next prime is 20121222000133. The reversal of 20121222000122 is 22100022212102.

It is a happy number.

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., 20103287701561 + 17934298561 = 4483669^2 + 133919^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20121222000122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030305500029 + ... + 5030305500032.

Almost surely, 2^{20121222000122} is an apocalyptic number.

20121222000122 is a deficient number, since it is larger than the sum of its proper divisors (10060611000064).

20121222000122 is a wasteful number, since it uses less digits than its factorization.

20121222000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060611000063.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20121222000122 its reverse (22100022212102), we get a palindrome (42221244212224).

The spelling of 20121222000122 in words is "twenty trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-two", and thus it is an aban number.