121524222201 has 16 divisors (see below), whose sum is σ = 163719671808. Its totient is φ = 80172633600.

The previous prime is 121524222199. The next prime is 121524222247. The reversal of 121524222201 is 102222425121.

It is a happy number.

It is not a de Polignac number, because 121524222201 - 2¹ = 121524222199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121524222601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4231671 + ... + 4260291.

It is an arithmetic number, because the mean of its divisors is an integer number (10232479488).

Almost surely, 2^121524222201 is an apocalyptic number.

It is an amenable number.

121524222201 is a deficient number, since it is larger than the sum of its proper divisors (42195449607).

121524222201 is a wasteful number, since it uses less digits than its factorization.

121524222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43312.

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

Adding to 121524222201 its reverse (102222425121), we get a palindrome (223746647322).

The spelling of 121524222201 in words is "one hundred twenty-one billion, five hundred twenty-four million, two hundred twenty-two thousand, two hundred one".