121113220213 has 8 divisors (see below), whose sum is σ = 122831790336. Its totient is φ = 119395004400.

The previous prime is 121113220199. The next prime is 121113220219. The reversal of 121113220213 is 312022311121.

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 121113220213 - 2⁹ = 121113219701 is a prime.

It is a super-2 number, since 2×121113220213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121113220219) 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, 642403 + ... + 809263.

It is an arithmetic number, because the mean of its divisors is an integer number (15353973792).

Almost surely, 2^121113220213 is an apocalyptic number.

It is an amenable number.

121113220213 is a deficient number, since it is larger than the sum of its proper divisors (1718570123).

121113220213 is a wasteful number, since it uses less digits than its factorization.

121113220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177155.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121113220213 its reverse (312022311121), we get a palindrome (433135531334).

The spelling of 121113220213 in words is "one hundred twenty-one billion, one hundred thirteen million, two hundred twenty thousand, two hundred thirteen".