121020109984 has 48 divisors (see below), whose sum is σ = 240684522120. Its totient is φ = 59896949760.

The previous prime is 121020109957. The next prime is 121020110021. The reversal of 121020109984 is 489901020121.

It can be written as a sum of positive squares in 4 ways, for example, as 116808099984 + 4212010000 = 341772^2 + 64900^2 .

It is a super-3 number, since 3×121020109984³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1220014 + ... + 1315474.

Almost surely, 2^121020109984 is an apocalyptic number.

It is an amenable number.

121020109984 is a deficient number, since it is larger than the sum of its proper divisors (119664412136).

121020109984 is a wasteful number, since it uses less digits than its factorization.

121020109984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95873 (or 95865 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 121020109984 in words is "one hundred twenty-one billion, twenty million, one hundred nine thousand, nine hundred eighty-four".