122120000001221 has 16 divisors (see below), whose sum is σ = 122707406179968. Its totient is φ = 121534077931200.

The previous prime is 122120000001191. The next prime is 122120000001239. The reversal of 122120000001221 is 122100000021221.

It is a cyclic number.

It is not a de Polignac number, because 122120000001221 - 2³⁰ = 122118926259397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122120000001196 and 122120000001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120000000221) 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, 484406015 + ... + 484658051.

It is an arithmetic number, because the mean of its divisors is an integer number (7669212886248).

Almost surely, 2^{122120000001221} is an apocalyptic number.

It is an amenable number.

122120000001221 is a deficient number, since it is larger than the sum of its proper divisors (587406178747).

122120000001221 is a wasteful number, since it uses less digits than its factorization.

122120000001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254972.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122120000001221 its reverse (122100000021221), we get a palindrome (244220000022442).

The spelling of 122120000001221 in words is "one hundred twenty-two trillion, one hundred twenty billion, one thousand, two hundred twenty-one".