122121113230221 has 16 divisors (see below), whose sum is σ = 186099153151104. Its totient is φ = 69779804117184.

The previous prime is 122121113230219. The next prime is 122121113230331. The reversal of 122121113230221 is 122032311121221.

It is not a de Polignac number, because 122121113230221 - 2¹ = 122121113230219 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122121113230191 and 122121113230200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121113230121) 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, 153308170 + ... + 154102683.

It is an arithmetic number, because the mean of its divisors is an integer number (11631197071944).

Almost surely, 2^{122121113230221} is an apocalyptic number.

It is an amenable number.

122121113230221 is a deficient number, since it is larger than the sum of its proper divisors (63978039920883).

122121113230221 is a wasteful number, since it uses less digits than its factorization.

122121113230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307429780.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 122121113230221 its reverse (122032311121221), we get a palindrome (244153424351442).

The spelling of 122121113230221 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred thirteen million, two hundred thirty thousand, two hundred twenty-one".