122202121200221 has 16 divisors (see below), whose sum is σ = 124788385517184. Its totient is φ = 119640626267904.

The previous prime is 122202121200209. The next prime is 122202121200281. The reversal of 122202121200221 is 122002121202221.

It is a cyclic number.

It is not a de Polignac number, because 122202121200221 - 2³⁸ = 121927243293277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122202121200193 and 122202121200202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122202121200281) 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, 157659200 + ... + 158432406.

It is an arithmetic number, because the mean of its divisors is an integer number (7799274094824).

Almost surely, 2^{122202121200221} is an apocalyptic number.

It is an amenable number.

122202121200221 is a deficient number, since it is larger than the sum of its proper divisors (2586264316963).

122202121200221 is a wasteful number, since it uses less digits than its factorization.

122202121200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789220.

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

Adding to 122202121200221 its reverse (122002121202221), we get a palindrome (244204242402442).

The spelling of 122202121200221 in words is "one hundred twenty-two trillion, two hundred two billion, one hundred twenty-one million, two hundred thousand, two hundred twenty-one".