121774675172 has 6 divisors (see below), whose sum is σ = 213105681558. Its totient is φ = 60887337584.

The previous prime is 121774675157. The next prime is 121774675223. The reversal of 121774675172 is 271576477121.

It can be written as a sum of positive squares in only one way, i.e., 94860304036 + 26914371136 = 307994^2 + 164056^2 .

It is a super-2 number, since 2×121774675172² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121774675172.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15221834393 + ... + 15221834400.

It is an arithmetic number, because the mean of its divisors is an integer number (35517613593).

Almost surely, 2^121774675172 is an apocalyptic number.

It is an amenable number.

121774675172 is a deficient number, since it is larger than the sum of its proper divisors (91331006386).

121774675172 is a wasteful number, since it uses less digits than its factorization.

121774675172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30443668797 (or 30443668795 counting only the distinct ones).

The product of its digits is 1152480, while the sum is 50.

The spelling of 121774675172 in words is "one hundred twenty-one billion, seven hundred seventy-four million, six hundred seventy-five thousand, one hundred seventy-two".