121151354412544 has 20 divisors (see below), whose sum is σ = 242066085087024. Its totient is φ = 60575677206016.

The previous prime is 121151354412463. The next prime is 121151354412587. The reversal of 121151354412544 is 445214453151121.

It is a self number, because there is not a number n which added to its sum of digits gives 121151354412544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118311869032 + ... + 118311870055.

Almost surely, 2^{121151354412544} is an apocalyptic number.

It is an amenable number.

121151354412544 is a deficient number, since it is larger than the sum of its proper divisors (120914730674480).

121151354412544 is an frugal number, since it uses more digits than its factorization.

121151354412544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236623739105 (or 236623739089 counting only the distinct ones).

The product of its digits is 384000, while the sum is 43.

The spelling of 121151354412544 in words is "one hundred twenty-one trillion, one hundred fifty-one billion, three hundred fifty-four million, four hundred twelve thousand, five hundred forty-four".