1222121121101 has 8 divisors (see below), whose sum is σ = 1268836552704. Its totient is φ = 1175861450160.

The previous prime is 1222121121041. The next prime is 1222121121107. The reversal of 1222121121101 is 1011211212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222121121101 - 2⁶ = 1222121121037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222121121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222121121107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113934701 + ... + 113945426.

It is an arithmetic number, because the mean of its divisors is an integer number (158604569088).

Almost surely, 2^{1222121121101} is an apocalyptic number.

It is an amenable number.

1222121121101 is a deficient number, since it is larger than the sum of its proper divisors (46715431603).

1222121121101 is a wasteful number, since it uses less digits than its factorization.

1222121121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227880331.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1222121121101 its reverse (1011211212221), we get a palindrome (2233332333322).

The spelling of 1222121121101 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred one".