1212210022194 has 12 divisors (see below), whose sum is σ = 2626455048126. Its totient is φ = 404070007392.

The previous prime is 1212210022171. The next prime is 1212210022201. The reversal of 1212210022194 is 4912200122121.

It can be written as a sum of positive squares in only one way, i.e., 896913173025 + 315296849169 = 947055^2 + 561513^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33672500599 + ... + 33672500634.

Almost surely, 2^{1212210022194} is an apocalyptic number.

1212210022194 is an abundant number, since it is smaller than the sum of its proper divisors (1414245025932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212210022194 is a wasteful number, since it uses less digits than its factorization.

1212210022194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67345001241 (or 67345001238 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 1212210022194 in words is "one trillion, two hundred twelve billion, two hundred ten million, twenty-two thousand, one hundred ninety-four".