121022211213 has 24 divisors (see below), whose sum is σ = 187535493600. Its totient is φ = 77899349808.

The previous prime is 121022211203. The next prime is 121022211239. The reversal of 121022211213 is 312112220121.

It is not a de Polignac number, because 121022211213 - 2¹⁷ = 121022080141 is a prime.

It is a super-3 number, since 3×121022211213³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022211203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8579743 + ... + 8593836.

It is an arithmetic number, because the mean of its divisors is an integer number (7813978900).

Almost surely, 2^121022211213 is an apocalyptic number.

It is an amenable number.

121022211213 is a deficient number, since it is larger than the sum of its proper divisors (66513282387).

121022211213 is an equidigital number, since it uses as much as digits as its factorization.

121022211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17173623 (or 17173611 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121022211213 its reverse (312112220121), we get a palindrome (433134431334).

The spelling of 121022211213 in words is "one hundred twenty-one billion, twenty-two million, two hundred eleven thousand, two hundred thirteen".