1225305540001 has 2 divisors, whose sum is σ = 1225305540002. Its totient is φ = 1225305540000.

The previous prime is 1225305539963. The next prime is 1225305540049. The reversal of 1225305540001 is 1000455035221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194815141776 + 30490398225 = 1093076^2 + 174615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225305540001 - 2⁹ = 1225305539489 is a prime.

It is a super-2 number, since 2×1225305540001² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1225305540601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612652770000 + 612652770001.

It is an arithmetic number, because the mean of its divisors is an integer number (612652770001).

Almost surely, 2^{1225305540001} is an apocalyptic number.

It is an amenable number.

1225305540001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225305540001 is an equidigital number, since it uses as much as digits as its factorization.

1225305540001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 1225305540001 in words is "one trillion, two hundred twenty-five billion, three hundred five million, five hundred forty thousand, one".