30223220420042 has 32 divisors (see below), whose sum is σ = 50059695485520. Its totient is φ = 13596223726080.

The previous prime is 30223220419999. The next prime is 30223220420047. The reversal of 30223220420042 is 24002402232203.

It can be written as a sum of positive squares in 8 ways, for example, as 646253602201 + 29576966817841 = 803899^2 + 5438471^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 30223220419993 and 30223220420020.

It is not an unprimeable number, because it can be changed into a prime (30223220420047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12121433 + ... + 14400540.

Almost surely, 2^{30223220420042} is an apocalyptic number.

30223220420042 is a deficient number, since it is larger than the sum of its proper divisors (19836475065478).

30223220420042 is a wasteful number, since it uses less digits than its factorization.

30223220420042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26523098.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 30223220420042 its reverse (24002402232203), we get a palindrome (54225622652245).

The spelling of 30223220420042 in words is "thirty trillion, two hundred twenty-three billion, two hundred twenty million, four hundred twenty thousand, forty-two".