1212522166446 has 8 divisors (see below), whose sum is σ = 2425044332904. Its totient is φ = 404174055480.

The previous prime is 1212522166441. The next prime is 1212522166447. The reversal of 1212522166446 is 6446612252121.

It is a sphenic number, since it is the product of 3 distinct primes.

1212522166446 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1212522166398 and 1212522166407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212522166441) 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, 101043513865 + ... + 101043513876.

It is an arithmetic number, because the mean of its divisors is an integer number (303130541613).

Almost surely, 2^{1212522166446} is an apocalyptic number.

1212522166446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1212522166446 is a wasteful number, since it uses less digits than its factorization.

1212522166446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202087027746.

The product of its digits is 276480, while the sum is 42.

The spelling of 1212522166446 in words is "one trillion, two hundred twelve billion, five hundred twenty-two million, one hundred sixty-six thousand, four hundred forty-six".