121021021431244 has 48 divisors (see below), whose sum is σ = 234832979539872. Its totient is φ = 54106536960000.

The previous prime is 121021021431181. The next prime is 121021021431313. The reversal of 121021021431244 is 442134120120121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124000524 + ... + 124972684.

It is an arithmetic number, because the mean of its divisors is an integer number (4892353740414).

Almost surely, 2^{121021021431244} is an apocalyptic number.

It is an amenable number.

121021021431244 is a deficient number, since it is larger than the sum of its proper divisors (113811958108628).

121021021431244 is a wasteful number, since it uses less digits than its factorization.

121021021431244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018618 (or 1018616 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 121021021431244 its reverse (442134120120121), we get a palindrome (563155141551365).

The spelling of 121021021431244 in words is "one hundred twenty-one trillion, twenty-one billion, twenty-one million, four hundred thirty-one thousand, two hundred forty-four".