122222001222221 has 8 divisors (see below), whose sum is σ = 125065069561344. Its totient is φ = 119378964529440.

The previous prime is 122222001222193. The next prime is 122222001222359. The reversal of 122222001222221 is 122222100222221.

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

It is a cyclic number.

It is not a de Polignac number, because 122222001222221 - 2¹⁰ = 122222001221197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222001222421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6701 + ... + 15634706.

It is an arithmetic number, because the mean of its divisors is an integer number (15633133695168).

Almost surely, 2^{122222001222221} is an apocalyptic number.

It is an amenable number.

122222001222221 is a deficient number, since it is larger than the sum of its proper divisors (2843068339123).

122222001222221 is a wasteful number, since it uses less digits than its factorization.

122222001222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15823171.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 122222001222221 its reverse (122222100222221), we get a palindrome (244444101444442).

The spelling of 122222001222221 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, one million, two hundred twenty-two thousand, two hundred twenty-one".