121522541401 has 8 divisors (see below), whose sum is σ = 121752902880. Its totient is φ = 121292239968.

The previous prime is 121522541347. The next prime is 121522541419. The reversal of 121522541401 is 104145225121.

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

It is a cyclic number.

It is not a de Polignac number, because 121522541401 - 2²⁷ = 121388323673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121522541401.

It is not an unprimeable number, because it can be changed into a prime (121522341401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7335810 + ... + 7352356.

It is an arithmetic number, because the mean of its divisors is an integer number (15219112860).

Almost surely, 2^121522541401 is an apocalyptic number.

It is an amenable number.

121522541401 is a deficient number, since it is larger than the sum of its proper divisors (230361479).

121522541401 is a wasteful number, since it uses less digits than its factorization.

121522541401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30023.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 121522541401 its reverse (104145225121), we get a palindrome (225667766522).

The spelling of 121522541401 in words is "one hundred twenty-one billion, five hundred twenty-two million, five hundred forty-one thousand, four hundred one".