22512130244242 has 4 divisors (see below), whose sum is σ = 33768195366366. Its totient is φ = 11256065122120.

The previous prime is 22512130244173. The next prime is 22512130244243. The reversal of 22512130244242 is 24244203121522.

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., 21876377573961 + 635752670281 = 4677219^2 + 797341^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22512130244198 and 22512130244207.

It is not an unprimeable number, because it can be changed into a prime (22512130244243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5628032561059 + ... + 5628032561062.

Almost surely, 2^{22512130244242} is an apocalyptic number.

22512130244242 is a deficient number, since it is larger than the sum of its proper divisors (11256065122124).

22512130244242 is a wasteful number, since it uses less digits than its factorization.

22512130244242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11256065122123.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 22512130244242 its reverse (24244203121522), we get a palindrome (46756333365764).

The spelling of 22512130244242 in words is "twenty-two trillion, five hundred twelve billion, one hundred thirty million, two hundred forty-four thousand, two hundred forty-two".