220100220122122 has 4 divisors (see below), whose sum is σ = 330150330183186. Its totient is φ = 110050110061060.

The previous prime is 220100220122039. The next prime is 220100220122143. The reversal of 220100220122122 is 221221022001022.

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., 155299475010241 + 64800745111881 = 12461921^2 + 8049891^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220100220122122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55025055030529 + ... + 55025055030532.

Almost surely, 2^{220100220122122} is an apocalyptic number.

220100220122122 is a deficient number, since it is larger than the sum of its proper divisors (110050110061064).

220100220122122 is a wasteful number, since it uses less digits than its factorization.

220100220122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110050110061063.

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

Adding to 220100220122122 its reverse (221221022001022), we get a palindrome (441321242123144).

The spelling of 220100220122122 in words is "two hundred twenty trillion, one hundred billion, two hundred twenty million, one hundred twenty-two thousand, one hundred twenty-two".