1220138438034 has 8 divisors (see below), whose sum is σ = 2440276876080. Its totient is φ = 406712812676.

The previous prime is 1220138438009. The next prime is 1220138438093. The reversal of 1220138438034 is 4308348310221.

It is a sphenic number, since it is the product of 3 distinct primes.

1220138438034 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1220138437983 and 1220138438001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101678203164 + ... + 101678203175.

It is an arithmetic number, because the mean of its divisors is an integer number (305034609510).

Almost surely, 2^{1220138438034} is an apocalyptic number.

1220138438034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220138438034 is a wasteful number, since it uses less digits than its factorization.

1220138438034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203356406344.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 1220138438034 in words is "one trillion, two hundred twenty billion, one hundred thirty-eight million, four hundred thirty-eight thousand, thirty-four".