1110220222121 has 2 divisors, whose sum is σ = 1110220222122. Its totient is φ = 1110220222120.

The previous prime is 1110220222093. The next prime is 1110220222157. The reversal of 1110220222121 is 1212220220111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 619071549721 + 491148672400 = 786811^2 + 700820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110220222121 - 2¹⁸ = 1110219959977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1110220222121.

It is not a weakly prime, because it can be changed into another prime (1110220222621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555110111060 + 555110111061.

It is an arithmetic number, because the mean of its divisors is an integer number (555110111061).

Almost surely, 2^{1110220222121} is an apocalyptic number.

It is an amenable number.

1110220222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110220222121 is an equidigital number, since it uses as much as digits as its factorization.

1110220222121 is an evil number, because the sum of its binary digits is even.

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

Adding to 1110220222121 its reverse (1212220220111), we get a palindrome (2322440442232).

The spelling of 1110220222121 in words is "one trillion, one hundred ten billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".