13121230022 has 4 divisors (see below), whose sum is σ = 19681845036. Its totient is φ = 6560615010.

The previous prime is 13121230009. The next prime is 13121230063. The reversal of 13121230022 is 22003212131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22003212131 = 23 ⋅956661397.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280307504 + ... + 3280307507.

It is an arithmetic number, because the mean of its divisors is an integer number (4920461259).

Almost surely, 2^13121230022 is an apocalyptic number.

13121230022 is a deficient number, since it is larger than the sum of its proper divisors (6560615014).

13121230022 is an equidigital number, since it uses as much as digits as its factorization.

13121230022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6560615013.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13121230022 its reverse (22003212131), we get a palindrome (35124442153).

The spelling of 13121230022 in words is "thirteen billion, one hundred twenty-one million, two hundred thirty thousand, twenty-two".