13121120212 has 24 divisors (see below), whose sum is σ = 23367849120. Its totient is φ = 6444751200.

The previous prime is 13121120119. The next prime is 13121120231. The reversal of 13121120212 is 21202112131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323278 + ... + 361594.

It is an arithmetic number, because the mean of its divisors is an integer number (973660380).

Almost surely, 2^13121120212 is an apocalyptic number.

It is an amenable number.

13121120212 is a deficient number, since it is larger than the sum of its proper divisors (10246728908).

13121120212 is a wasteful number, since it uses less digits than its factorization.

13121120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39831 (or 39829 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 13121120212 its reverse (21202112131), we get a palindrome (34323232343).

The spelling of 13121120212 in words is "thirteen billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".