121400442412 has 6 divisors (see below), whose sum is σ = 212450774228. Its totient is φ = 60700221204.

The previous prime is 121400442389. The next prime is 121400442451. The reversal of 121400442412 is 214244004121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15175055298 + ... + 15175055305.

Almost surely, 2^121400442412 is an apocalyptic number.

It is an amenable number.

121400442412 is a deficient number, since it is larger than the sum of its proper divisors (91050331816).

121400442412 is a wasteful number, since it uses less digits than its factorization.

121400442412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30350110607 (or 30350110605 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 121400442412 its reverse (214244004121), we get a palindrome (335644446533).

The spelling of 121400442412 in words is "one hundred twenty-one billion, four hundred million, four hundred forty-two thousand, four hundred twelve".