1222306020644 has 48 divisors (see below), whose sum is σ = 2277011616768. Its totient is φ = 572829848448.

The previous prime is 1222306020613. The next prime is 1222306020671. The reversal of 1222306020644 is 4460206032221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222306020644.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3728909 + ... + 4043435.

It is an arithmetic number, because the mean of its divisors is an integer number (47437742016).

Almost surely, 2^{1222306020644} is an apocalyptic number.

It is an amenable number.

1222306020644 is a deficient number, since it is larger than the sum of its proper divisors (1054705596124).

1222306020644 is a wasteful number, since it uses less digits than its factorization.

1222306020644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315404 (or 315402 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 1222306020644 in words is "one trillion, two hundred twenty-two billion, three hundred six million, twenty thousand, six hundred forty-four".