1212222000195 has 96 divisors (see below), whose sum is σ = 2219802923520. Its totient is φ = 610271677440.

The previous prime is 1212222000191. The next prime is 1212222000217. The reversal of 1212222000195 is 5910002222121.

It is a happy number.

It is not a de Polignac number, because 1212222000195 - 2² = 1212222000191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212222000191) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 363919680 + ... + 363923010.

It is an arithmetic number, because the mean of its divisors is an integer number (23122947120).

Almost surely, 2^{1212222000195} is an apocalyptic number.

1212222000195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1212222000195 is a deficient number, since it is larger than the sum of its proper divisors (1007580923325).

1212222000195 is a wasteful number, since it uses less digits than its factorization.

1212222000195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777 (or 4774 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 1212222000195 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, one hundred ninety-five", and thus it is an aban number.