121937547092 has 12 divisors (see below), whose sum is σ = 213406133556. Its totient is φ = 60964366080.

The previous prime is 121937547089. The next prime is 121937547119. The reversal of 121937547092 is 290745739121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 103861820176 + 18075726916 = 322276^2 + 134446^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 121937547092.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 1039223 + ... + 1150590.

It is an arithmetic number, because the mean of its divisors is an integer number (17783844463).

Almost surely, 2^121937547092 is an apocalyptic number.

It is an amenable number.

121937547092 is a deficient number, since it is larger than the sum of its proper divisors (91468586464).

121937547092 is a wasteful number, since it uses less digits than its factorization.

121937547092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203738 (or 2203736 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 121937547092 in words is "one hundred twenty-one billion, nine hundred thirty-seven million, five hundred forty-seven thousand, ninety-two".