1222130440501 has 4 divisors (see below), whose sum is σ = 1222590409452. Its totient is φ = 1221670471552.

The previous prime is 1222130440499. The next prime is 1222130440523. The reversal of 1222130440501 is 1050440312221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 404751712401 + 817378728100 = 636201^2 + 904090^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222130440501 - 2¹ = 1222130440499 is a prime.

It is a super-2 number, since 2×1222130440501² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222130440561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229980490 + ... + 229985803.

It is an arithmetic number, because the mean of its divisors is an integer number (305647602363).

Almost surely, 2^{1222130440501} is an apocalyptic number.

It is an amenable number.

1222130440501 is a deficient number, since it is larger than the sum of its proper divisors (459968951).

1222130440501 is an equidigital number, since it uses as much as digits as its factorization.

1222130440501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459968950.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1222130440501 its reverse (1050440312221), we get a palindrome (2272570752722).

The spelling of 1222130440501 in words is "one trillion, two hundred twenty-two billion, one hundred thirty million, four hundred forty thousand, five hundred one".