121435422201 has 12 divisors (see below), whose sum is σ = 175410777828. Its totient is φ = 80955075744.

The previous prime is 121435422181. The next prime is 121435422217. The reversal of 121435422201 is 102224534121.

121435422201 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 35 + 422 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101903962176 + 19531460025 = 319224^2 + 139755^2 .

It is not a de Polignac number, because 121435422201 - 2⁶ = 121435422137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121435422301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336571 + ... + 596783.

It is an arithmetic number, because the mean of its divisors is an integer number (14617564819).

Almost surely, 2^121435422201 is an apocalyptic number.

It is an amenable number.

121435422201 is a deficient number, since it is larger than the sum of its proper divisors (53975355627).

121435422201 is a wasteful number, since it uses less digits than its factorization.

121435422201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312072 (or 312069 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 121435422201 its reverse (102224534121), we get a palindrome (223659956322).

The spelling of 121435422201 in words is "one hundred twenty-one billion, four hundred thirty-five million, four hundred twenty-two thousand, two hundred one".