30121122112042 has 16 divisors (see below), whose sum is σ = 48657607797960. Its totient is φ = 13901939062272.

The previous prime is 30121122112027. The next prime is 30121122112043. The reversal of 30121122112042 is 24021122112103.

It can be written as a sum of positive squares in 4 ways, for example, as 21677861090601 + 8443261021441 = 4655949^2 + 2905729^2 .

It is not an unprimeable number, because it can be changed into a prime (30121122112043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1707567 + ... + 7947202.

Almost surely, 2^{30121122112042} is an apocalyptic number.

30121122112042 is a deficient number, since it is larger than the sum of its proper divisors (18536485685918).

30121122112042 is a wasteful number, since it uses less digits than its factorization.

30121122112042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9774777.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 30121122112042 its reverse (24021122112103), we get a palindrome (54142244224145).

The spelling of 30121122112042 in words is "thirty trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, forty-two".