121041495556996 has 81 divisors (see below), whose sum is σ = 247385864840751. Its totient is φ = 51669433440576.

The previous prime is 121041495556981. The next prime is 121041495557009. The reversal of 121041495556996 is 699655594140121.

The square root of 121041495556996 is 11001886.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 80834736382596 + 40206759174400 = 8990814^2 + 6340880^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 42665312490 + ... + 42665315326.

Almost surely, 2^{121041495556996} is an apocalyptic number.

121041495556996 is the 11001886-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121041495556996

121041495556996 is an abundant number, since it is smaller than the sum of its proper divisors (126344369283755).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121041495556996 is an frugal number, since it uses more digits than its factorization.

121041495556996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246 (or 3123 counting only the distinct ones).

The product of its (nonzero) digits is 104976000, while the sum is 67.

The spelling of 121041495556996 in words is "one hundred twenty-one trillion, forty-one billion, four hundred ninety-five million, five hundred fifty-six thousand, nine hundred ninety-six".