22111220100122 has 4 divisors (see below), whose sum is σ = 33166830150186. Its totient is φ = 11055610050060.

The previous prime is 22111220100107. The next prime is 22111220100163. The reversal of 22111220100122 is 22100102211122.

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., 11088826740121 + 11022393360001 = 3329989^2 + 3319999^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22111220100122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5527805025029 + ... + 5527805025032.

Almost surely, 2^{22111220100122} is an apocalyptic number.

22111220100122 is a deficient number, since it is larger than the sum of its proper divisors (11055610050064).

22111220100122 is a wasteful number, since it uses less digits than its factorization.

22111220100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11055610050063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111220100122 its reverse (22100102211122), we get a palindrome (44211322311244).

The spelling of 22111220100122 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, one hundred thousand, one hundred twenty-two".