122200201222121 has 32 divisors (see below), whose sum is σ = 141447981321216. Its totient is φ = 104336590336000.

The previous prime is 122200201222091. The next prime is 122200201222139. The reversal of 122200201222121 is 121222102002221.

It is a de Polignac number, because none of the positive numbers 2^k-122200201222121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122200201222093 and 122200201222102.

It is not an unprimeable number, because it can be changed into a prime (122200201252121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170868401 + ... + 171582081.

It is an arithmetic number, because the mean of its divisors is an integer number (4420249416288).

Almost surely, 2^{122200201222121} is an apocalyptic number.

122200201222121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122200201222121 is a deficient number, since it is larger than the sum of its proper divisors (19247780099095).

122200201222121 is a wasteful number, since it uses less digits than its factorization.

122200201222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715633.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122200201222121 its reverse (121222102002221), we get a palindrome (243422303224342).

The spelling of 122200201222121 in words is "one hundred twenty-two trillion, two hundred billion, two hundred one million, two hundred twenty-two thousand, one hundred twenty-one".