1211056041212 has 24 divisors (see below), whose sum is σ = 2129743271040. Its totient is φ = 602562723840.

The previous prime is 1211056041199. The next prime is 1211056041233. The reversal of 1211056041212 is 2121406501121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424364 + ... + 1613132.

It is an arithmetic number, because the mean of its divisors is an integer number (88739302960).

Almost surely, 2^{1211056041212} is an apocalyptic number.

It is an amenable number.

1211056041212 is a deficient number, since it is larger than the sum of its proper divisors (918687229828).

1211056041212 is a wasteful number, since it uses less digits than its factorization.

1211056041212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190021 (or 1190019 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The spelling of 1211056041212 in words is "one trillion, two hundred eleven billion, fifty-six million, forty-one thousand, two hundred twelve".