121310022213 has 48 divisors (see below), whose sum is σ = 186603196416. Its totient is φ = 75806357760.

The previous prime is 121310022191. The next prime is 121310022277. The reversal of 121310022213 is 312220013121.

121310022213 is a `hidden beast` number, since 121 + 310 + 0 + 22 + 213 = 666.

It is not a de Polignac number, because 121310022213 - 2⁵ = 121310022181 is a prime.

It is a super-2 number, since 2×121310022213² (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 (121310022313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2275681 + ... + 2328377.

It is an arithmetic number, because the mean of its divisors is an integer number (3887566592).

Almost surely, 2^121310022213 is an apocalyptic number.

It is an amenable number.

121310022213 is a deficient number, since it is larger than the sum of its proper divisors (65293174203).

121310022213 is a wasteful number, since it uses less digits than its factorization.

121310022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52994 (or 52991 counting only the distinct ones).

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

Adding to 121310022213 its reverse (312220013121), we get a palindrome (433530035334).

The spelling of 121310022213 in words is "one hundred twenty-one billion, three hundred ten million, twenty-two thousand, two hundred thirteen".