122111002211221 has 8 divisors (see below), whose sum is σ = 122530377553920. Its totient is φ = 121691644653072.

The previous prime is 122111002211197. The next prime is 122111002211287. The reversal of 122111002211221 is 122112200111221.

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 122111002211221 - 2⁹ = 122111002210709 is a prime.

It is a super-2 number, since 2×122111002211221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111002215221) 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, 9383436 + ... + 18228298.

It is an arithmetic number, because the mean of its divisors is an integer number (15316297194240).

Almost surely, 2^{122111002211221} is an apocalyptic number.

It is an amenable number.

122111002211221 is a deficient number, since it is larger than the sum of its proper divisors (419375342699).

122111002211221 is an equidigital number, since it uses as much as digits as its factorization.

122111002211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8892275.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122111002211221 its reverse (122112200111221), we get a palindrome (244223202322442).

The spelling of 122111002211221 in words is "one hundred twenty-two trillion, one hundred eleven billion, two million, two hundred eleven thousand, two hundred twenty-one".