121242216462 has 16 divisors (see below), whose sum is σ = 256748223312. Its totient is φ = 38036773760.

The previous prime is 121242216401. The next prime is 121242216463. The reversal of 121242216462 is 264612242121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121242216463) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 594324489 + ... + 594324692.

It is an arithmetic number, because the mean of its divisors is an integer number (16046763957).

Almost surely, 2^121242216462 is an apocalyptic number.

121242216462 is an abundant number, since it is smaller than the sum of its proper divisors (135506006850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121242216462 is a wasteful number, since it uses less digits than its factorization.

121242216462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188649203.

The product of its digits is 18432, while the sum is 33.

Adding to 121242216462 its reverse (264612242121), we get a palindrome (385854458583).

The spelling of 121242216462 in words is "one hundred twenty-one billion, two hundred forty-two million, two hundred sixteen thousand, four hundred sixty-two".