1222484900544 has 168 divisors, whose sum is σ = 3605344094352. Its totient is φ = 395817891840.

The previous prime is 1222484900479. The next prime is 1222484900617. The reversal of 1222484900544 is 4450094842221.

1222484900544 is a `hidden beast` number, since 1 + 2 + 2 + 24 + 84 + 9 + 0 + 0 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1222484900544.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4346662 + ... + 4619354.

It is an arithmetic number, because the mean of its divisors is an integer number (21460381514).

Almost surely, 2^{1222484900544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222484900544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1802672047176).

1222484900544 is an abundant number, since it is smaller than the sum of its proper divisors (2382859193808).

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

1222484900544 is a wasteful number, since it uses less digits than its factorization.

1222484900544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272935 (or 272922 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 1222484900544 in words is "one trillion, two hundred twenty-two billion, four hundred eighty-four million, nine hundred thousand, five hundred forty-four".