122102100212221 has 8 divisors (see below), whose sum is σ = 128586763342080. Its totient is φ = 115623260762688.

The previous prime is 122102100212137. The next prime is 122102100212233. The reversal of 122102100212221 is 122212001201221.

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 122102100212221 - 2⁹ = 122102100211709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102100212291) 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, 1455877036 + ... + 1455960901.

It is an arithmetic number, because the mean of its divisors is an integer number (16073345417760).

Almost surely, 2^{122102100212221} is an apocalyptic number.

It is an amenable number.

122102100212221 is a deficient number, since it is larger than the sum of its proper divisors (6484663129859).

122102100212221 is a wasteful number, since it uses less digits than its factorization.

122102100212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911840163.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122102100212221 its reverse (122212001201221), we get a palindrome (244314101413442).

The spelling of 122102100212221 in words is "one hundred twenty-two trillion, one hundred two billion, one hundred million, two hundred twelve thousand, two hundred twenty-one".