121800416770 has 16 divisors (see below), whose sum is σ = 219776798520. Its totient is φ = 48601044864.

The previous prime is 121800416743. The next prime is 121800416779. The reversal of 121800416770 is 77614008121.

It can be written as a sum of positive squares in 4 ways, for example, as 93030490081 + 28769926689 = 305009^2 + 169617^2 .

It is not an unprimeable number, because it can be changed into a prime (121800416779) 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, 14885937 + ... + 14894116.

Almost surely, 2^121800416770 is an apocalyptic number.

121800416770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121800416770 is a deficient number, since it is larger than the sum of its proper divisors (97976381750).

121800416770 is a wasteful number, since it uses less digits than its factorization.

121800416770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29780469.

The product of its (nonzero) digits is 18816, while the sum is 37.

The spelling of 121800416770 in words is "one hundred twenty-one billion, eight hundred million, four hundred sixteen thousand, seven hundred seventy".