122011203213 has 6 divisors (see below), whose sum is σ = 176238404654. Its totient is φ = 81340802136.

The previous prime is 122011203179. The next prime is 122011203227. The reversal of 122011203213 is 312302110221.

122011203213 is a `hidden beast` number, since 1 + 220 + 1 + 120 + 321 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 98246514249 + 23764688964 = 313443^2 + 154158^2 .

It is not a de Polignac number, because 122011203213 - 2¹⁸ = 122010941069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011203313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6778400170 + ... + 6778400187.

Almost surely, 2^122011203213 is an apocalyptic number.

It is an amenable number.

122011203213 is a deficient number, since it is larger than the sum of its proper divisors (54227201441).

122011203213 is a wasteful number, since it uses less digits than its factorization.

122011203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13556800363 (or 13556800360 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 122011203213 its reverse (312302110221), we get a palindrome (434313313434).

The spelling of 122011203213 in words is "one hundred twenty-two billion, eleven million, two hundred three thousand, two hundred thirteen".