121215354023044 has 12 divisors (see below), whose sum is σ = 224604920689884. Its totient is φ = 57042519540224.

The previous prime is 121215354023021. The next prime is 121215354023143. The reversal of 121215354023044 is 440320453512121.

It can be written as a sum of positive squares in 2 ways, for example, as 86498370202500 + 34716983820544 = 9300450^2 + 5892112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121215354022994 and 121215354023012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891289367749 + ... + 891289367884.

It is an arithmetic number, because the mean of its divisors is an integer number (18717076724157).

Almost surely, 2^{121215354023044} is an apocalyptic number.

It is an amenable number.

121215354023044 is a deficient number, since it is larger than the sum of its proper divisors (103389566666840).

121215354023044 is a wasteful number, since it uses less digits than its factorization.

121215354023044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782578735654 (or 1782578735652 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 121215354023044 in words is "one hundred twenty-one trillion, two hundred fifteen billion, three hundred fifty-four million, twenty-three thousand, forty-four".