121540412022 has 8 divisors (see below), whose sum is σ = 243080824056. Its totient is φ = 40513470672.

The previous prime is 121540411973. The next prime is 121540412033. The reversal of 121540412022 is 220214045121.

It is a sphenic number, since it is the product of 3 distinct primes.

121540412022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 121540411983 and 121540412001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10128367663 + ... + 10128367674.

It is an arithmetic number, because the mean of its divisors is an integer number (30385103007).

Almost surely, 2^121540412022 is an apocalyptic number.

121540412022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121540412022 is a wasteful number, since it uses less digits than its factorization.

121540412022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20256735342.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 121540412022 its reverse (220214045121), we get a palindrome (341754457143).

The spelling of 121540412022 in words is "one hundred twenty-one billion, five hundred forty million, four hundred twelve thousand, twenty-two".