222220121021113 has 4 divisors (see below), whose sum is σ = 222220276253668. Its totient is φ = 222219965788560.

The previous prime is 222220121021081. The next prime is 222220121021149. The reversal of 222220121021113 is 311120121022222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122430949781904 + 99789171239209 = 11064852^2 + 9989453^2 .

It is a cyclic number.

It is not a de Polignac number, because 222220121021113 - 2⁵ = 222220121021081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222220121021813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75448806 + ... + 78338767.

It is an arithmetic number, because the mean of its divisors is an integer number (55555069063417).

Almost surely, 2^{222220121021113} is an apocalyptic number.

It is an amenable number.

222220121021113 is a deficient number, since it is larger than the sum of its proper divisors (155232555).

222220121021113 is a wasteful number, since it uses less digits than its factorization.

222220121021113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155232554.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 222220121021113 its reverse (311120121022222), we get a palindrome (533340242043335).

The spelling of 222220121021113 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-one million, twenty-one thousand, one hundred thirteen".