122444000213 has 4 divisors (see below), whose sum is σ = 122879744268. Its totient is φ = 122008256160.

The previous prime is 122444000201. The next prime is 122444000243. The reversal of 122444000213 is 312000444221.

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 70914092209 + 51529908004 = 266297^2 + 227002^2 .

It is a cyclic number.

It is not a de Polignac number, because 122444000213 - 2⁶ = 122444000149 is a prime.

It is a super-2 number, since 2×122444000213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122444000243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217871606 + ... + 217872167.

It is an arithmetic number, because the mean of its divisors is an integer number (30719936067).

Almost surely, 2^122444000213 is an apocalyptic number.

It is an amenable number.

122444000213 is a deficient number, since it is larger than the sum of its proper divisors (435744055).

122444000213 is an equidigital number, since it uses as much as digits as its factorization.

122444000213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435744054.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 122444000213 its reverse (312000444221), we get a palindrome (434444444434).

The spelling of 122444000213 in words is "one hundred twenty-two billion, four hundred forty-four million, two hundred thirteen", and thus it is an aban number.