10012221234 has 12 divisors (see below), whose sum is σ = 21693146046. Its totient is φ = 3337407072.

The previous prime is 10012221223. The next prime is 10012221239. The reversal of 10012221234 is 43212221001.

It is a happy number.

10012221234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8289556209 + 1722665025 = 91047^2 + 41505^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 556234513 = 10012221234 / (1 + 0 + 0 + 1 + 2 + 2 + 2 + 1 + 2 + 3 + 4).

It is not an unprimeable number, because it can be changed into a prime (10012221239) 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 5 ways as a sum of consecutive naturals, for example, 278117239 + ... + 278117274.

Almost surely, 2^10012221234 is an apocalyptic number.

10012221234 is an abundant number, since it is smaller than the sum of its proper divisors (11680924812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10012221234 is a wasteful number, since it uses less digits than its factorization.

10012221234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556234521 (or 556234518 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10012221234 its reverse (43212221001), we get a palindrome (53224442235).

The spelling of 10012221234 in words is "ten billion, twelve million, two hundred twenty-one thousand, two hundred thirty-four".