1222545412240 has 40 divisors (see below), whose sum is σ = 2842484464440. Its totient is φ = 489006744576.

The previous prime is 1222545412223. The next prime is 1222545412259. The reversal of 1222545412240 is 422145452221.

It can be written as a sum of positive squares in 4 ways, for example, as 26488213504 + 1196057198736 = 162752^2 + 1093644^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1222545412196 and 1222545412205.

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, 3826996 + ... + 4134124.

It is an arithmetic number, because the mean of its divisors is an integer number (71062111611).

Almost surely, 2^{1222545412240} is an apocalyptic number.

1222545412240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222545412240 is an abundant number, since it is smaller than the sum of its proper divisors (1619939052200).

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

1222545412240 is a wasteful number, since it uses less digits than its factorization.

1222545412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356899 (or 356893 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

The spelling of 1222545412240 in words is "one trillion, two hundred twenty-two billion, five hundred forty-five million, four hundred twelve thousand, two hundred forty".