6121997212 has 6 divisors (see below), whose sum is σ = 10713495128. Its totient is φ = 3060998604.

The previous prime is 6121997183. The next prime is 6121997243. The reversal of 6121997212 is 2127991216.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765249648 + ... + 765249655.

Almost surely, 2^6121997212 is an apocalyptic number.

It is an amenable number.

6121997212 is a deficient number, since it is larger than the sum of its proper divisors (4591497916).

6121997212 is a wasteful number, since it uses less digits than its factorization.

6121997212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530499307 (or 1530499305 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 6121997212 is about 78243.1927518299. The cubic root of 6121997212 is about 1829.3538096942.

The spelling of 6121997212 in words is "six billion, one hundred twenty-one million, nine hundred ninety-seven thousand, two hundred twelve".