1212123196 has 12 divisors (see below), whose sum is σ = 2126998048. Its totient is φ = 604409472.

The previous prime is 1212123193. The next prime is 1212123203. The reversal of 1212123196 is 6913212121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212123191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411381 + ... + 414316.

Almost surely, 2^1212123196 is an apocalyptic number.

It is an amenable number.

1212123196 is a deficient number, since it is larger than the sum of its proper divisors (914874852).

1212123196 is a wasteful number, since it uses less digits than its factorization.

1212123196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826068 (or 826066 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 1212123196 is about 34815.5596824179. The cubic root of 1212123196 is about 1066.2251459577.

The spelling of 1212123196 in words is "one billion, two hundred twelve million, one hundred twenty-three thousand, one hundred ninety-six".