122200221122221 has 8 divisors (see below), whose sum is σ = 133318390496544. Its totient is φ = 111083561475120.

The previous prime is 122200221122207. The next prime is 122200221122251. The reversal of 122200221122221 is 122221122002221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122200221122221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122200221122192 and 122200221122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200221122251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377262555 + ... + 377586328.

It is an arithmetic number, because the mean of its divisors is an integer number (16664798812068).

Almost surely, 2^{122200221122221} is an apocalyptic number.

122200221122221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122200221122221 is a deficient number, since it is larger than the sum of its proper divisors (11118169374323).

122200221122221 is a wasteful number, since it uses less digits than its factorization.

122200221122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754863611.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 122200221122221 its reverse (122221122002221), we get a palindrome (244421343124442).

The spelling of 122200221122221 in words is "one hundred twenty-two trillion, two hundred billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-one".