111010222210121 has 8 divisors (see below), whose sum is σ = 119549560368840. Its totient is φ = 102470896950912.

The previous prime is 111010222210099. The next prime is 111010222210133. The reversal of 111010222210121 is 121012222010111.

It can be written as a sum of positive squares in 4 ways, for example, as 20504015634496 + 90506206575625 = 4528136^2 + 9513475^2 .

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 111010222210121 - 2²⁶ = 111010155101257 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 111010222210121.

It is not an unprimeable number, because it can be changed into a prime (111010222210141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21896645 + ... + 26485533.

It is an arithmetic number, because the mean of its divisors is an integer number (14943695046105).

Almost surely, 2^{111010222210121} is an apocalyptic number.

It is an amenable number.

111010222210121 is a deficient number, since it is larger than the sum of its proper divisors (8539338158719).

111010222210121 is a wasteful number, since it uses less digits than its factorization.

111010222210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449755.

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

Adding to 111010222210121 its reverse (121012222010111), we get a palindrome (232022444220232).

The spelling of 111010222210121 in words is "one hundred eleven trillion, ten billion, two hundred twenty-two million, two hundred ten thousand, one hundred twenty-one".