31224222401234 has 4 divisors (see below), whose sum is σ = 46836333601854. Its totient is φ = 15612111200616.

The previous prime is 31224222401233. The next prime is 31224222401257. The reversal of 31224222401234 is 43210422242213.

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., 19796759916025 + 11427462485209 = 4449355^2 + 3380453^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31224222401234.

It is not an unprimeable number, because it can be changed into a prime (31224222401233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7806055600307 + ... + 7806055600310.

Almost surely, 2^{31224222401234} is an apocalyptic number.

31224222401234 is a deficient number, since it is larger than the sum of its proper divisors (15612111200620).

31224222401234 is a wasteful number, since it uses less digits than its factorization.

31224222401234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15612111200619.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 31224222401234 its reverse (43210422242213), we get a palindrome (74434644643447).

The spelling of 31224222401234 in words is "thirty-one trillion, two hundred twenty-four billion, two hundred twenty-two million, four hundred one thousand, two hundred thirty-four".