121402345443412 has 24 divisors (see below), whose sum is σ = 234560500951392. Its totient is φ = 54518030263200.

The previous prime is 121402345443403. The next prime is 121402345443427. The reversal of 121402345443412 is 214344543204121.

It is a congruent number.

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, 16621347039 + ... + 16621354342.

It is an arithmetic number, because the mean of its divisors is an integer number (9773354206308).

Almost surely, 2^{121402345443412} is an apocalyptic number.

It is an amenable number.

121402345443412 is a deficient number, since it is larger than the sum of its proper divisors (113158155507980).

121402345443412 is a wasteful number, since it uses less digits than its factorization.

121402345443412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33242701479 (or 33242701477 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 40.

Adding to 121402345443412 its reverse (214344543204121), we get a palindrome (335746888647533).

The spelling of 121402345443412 in words is "one hundred twenty-one trillion, four hundred two billion, three hundred forty-five million, four hundred forty-three thousand, four hundred twelve".