1224445204212 has 12 divisors (see below), whose sum is σ = 2857038809856. Its totient is φ = 408148401400.

The previous prime is 1224445204159. The next prime is 1224445204223. The reversal of 1224445204212 is 2124025444221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51018550164 + ... + 51018550187.

It is an arithmetic number, because the mean of its divisors is an integer number (238086567488).

Almost surely, 2^{1224445204212} is an apocalyptic number.

1224445204212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224445204212 is an abundant number, since it is smaller than the sum of its proper divisors (1632593605644).

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

1224445204212 is a wasteful number, since it uses less digits than its factorization.

1224445204212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102037100358 (or 102037100356 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 33.

The spelling of 1224445204212 in words is "one trillion, two hundred twenty-four billion, four hundred forty-five million, two hundred four thousand, two hundred twelve".