30121212220430 has 32 divisors (see below), whose sum is σ = 57072102746400. Its totient is φ = 11414287660032.

The previous prime is 30121212220423. The next prime is 30121212220447. The reversal of 30121212220430 is 3402221212103.

It is a junction number, because it is equal to n+sod(n) for n = 30121212220396 and 30121212220405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43016966 + ... + 43711574.

It is an arithmetic number, because the mean of its divisors is an integer number (1783503210825).

Almost surely, 2^{30121212220430} is an apocalyptic number.

30121212220430 is a deficient number, since it is larger than the sum of its proper divisors (26950890525970).

30121212220430 is a wasteful number, since it uses less digits than its factorization.

30121212220430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922868.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 30121212220430 its reverse (3402221212103), we get a palindrome (33523433432533).

The spelling of 30121212220430 in words is "thirty trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, four hundred thirty".