1212133195 has 16 divisors (see below), whose sum is σ = 1790228160. Its totient is φ = 767240064.

The previous prime is 1212133183. The next prime is 1212133199. The reversal of 1212133195 is 5913312121.

It is a cyclic number.

It is not a de Polignac number, because 1212133195 - 2⁵ = 1212133163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212133199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331560 + ... + 1332469.

It is an arithmetic number, because the mean of its divisors is an integer number (111889260).

Almost surely, 2^1212133195 is an apocalyptic number.

1212133195 is a deficient number, since it is larger than the sum of its proper divisors (578094965).

1212133195 is a wasteful number, since it uses less digits than its factorization.

1212133195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664054.

The product of its digits is 1620, while the sum is 28.

The square root of 1212133195 is about 34815.7032817090. The cubic root of 1212133195 is about 1066.2280777708.

The spelling of 1212133195 in words is "one billion, two hundred twelve million, one hundred thirty-three thousand, one hundred ninety-five".