1012223213234 has 4 divisors (see below), whose sum is σ = 1518334819854. Its totient is φ = 506111606616.

The previous prime is 1012223213233. The next prime is 1012223213237. The reversal of 1012223213234 is 4323123222101.

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

It can be written as a sum of positive squares in only one way, i.e., 851384517025 + 160838696209 = 922705^2 + 401047^2 .

It is not an unprimeable number, because it can be changed into a prime (1012223213231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253055803307 + ... + 253055803310.

Almost surely, 2^{1012223213234} is an apocalyptic number.

1012223213234 is a deficient number, since it is larger than the sum of its proper divisors (506111606620).

1012223213234 is an equidigital number, since it uses as much as digits as its factorization.

1012223213234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506111606619.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1012223213234 its reverse (4323123222101), we get a palindrome (5335346435335).

The spelling of 1012223213234 in words is "one trillion, twelve billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred thirty-four".