1224201807361 has 8 divisors (see below), whose sum is σ = 1318380093800. Its totient is φ = 1130024794752.

The previous prime is 1224201807331. The next prime is 1224201807401. The reversal of 1224201807361 is 1637081024221.

It can be written as a sum of positive squares in 4 ways, for example, as 795904858225 + 428296949136 = 892135^2 + 654444^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1224201807361 - 2⁵ = 1224201807329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224201807361.

It is not an unprimeable number, because it can be changed into a prime (1224201807331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2831815 + ... + 3235363.

It is an arithmetic number, because the mean of its divisors is an integer number (164797511725).

Almost surely, 2^{1224201807361} is an apocalyptic number.

It is an amenable number.

1224201807361 is a deficient number, since it is larger than the sum of its proper divisors (94178286439).

1224201807361 is a wasteful number, since it uses less digits than its factorization.

1224201807361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636915.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 1224201807361 in words is "one trillion, two hundred twenty-four billion, two hundred one million, eight hundred seven thousand, three hundred sixty-one".