122121222203221 has 8 divisors (see below), whose sum is σ = 122874865585920. Its totient is φ = 121367632887072.

The previous prime is 122121222203131. The next prime is 122121222203269. The reversal of 122121222203221 is 122302222121221.

It is a happy number.

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 122121222203221 - 2⁷ = 122121222203093 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 (122121222203821) 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, 8980576 + ... + 18024793.

It is an arithmetic number, because the mean of its divisors is an integer number (15359358198240).

Almost surely, 2^{122121222203221} is an apocalyptic number.

It is an amenable number.

122121222203221 is a deficient number, since it is larger than the sum of its proper divisors (753643382699).

122121222203221 is a wasteful number, since it uses less digits than its factorization.

122121222203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27033275.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 122121222203221 its reverse (122302222121221), we get a palindrome (244423444324442).

The spelling of 122121222203221 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred three thousand, two hundred twenty-one".