121322443012 has 6 divisors (see below), whose sum is σ = 212314275278. Its totient is φ = 60661221504.

The previous prime is 121322443001. The next prime is 121322443031. The reversal of 121322443012 is 210344223121.

It can be written as a sum of positive squares in only one way, i.e., 120314634496 + 1007808516 = 346864^2 + 31746^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165305373 + ... + 15165305380.

Almost surely, 2^121322443012 is an apocalyptic number.

It is an amenable number.

121322443012 is a deficient number, since it is larger than the sum of its proper divisors (90991832266).

121322443012 is a wasteful number, since it uses less digits than its factorization.

121322443012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30330610757 (or 30330610755 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 121322443012 its reverse (210344223121), we get a palindrome (331666666133).

The spelling of 121322443012 in words is "one hundred twenty-one billion, three hundred twenty-two million, four hundred forty-three thousand, twelve".