1212212010194 has 16 divisors (see below), whose sum is σ = 1872118803096. Its totient is φ = 588254112000.

The previous prime is 1212212010173. The next prime is 1212212010203. The reversal of 1212212010194 is 4910102122121.

It can be written as a sum of positive squares in 4 ways, for example, as 1200153115225 + 12058894969 = 1095515^2 + 109813^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20395817 + ... + 20455164.

Almost surely, 2^{1212212010194} is an apocalyptic number.

1212212010194 is a deficient number, since it is larger than the sum of its proper divisors (659906792902).

1212212010194 is a wasteful number, since it uses less digits than its factorization.

1212212010194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40851421.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 1212212010194 in words is "one trillion, two hundred twelve billion, two hundred twelve million, ten thousand, one hundred ninety-four".