1225240115541 has 16 divisors (see below), whose sum is σ = 1862808502464. Its totient is φ = 709641333504.

The previous prime is 1225240115527. The next prime is 1225240115551. The reversal of 1225240115541 is 1455110425221.

It is not a de Polignac number, because 1225240115541 - 2¹³ = 1225240107349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225240115551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 924011491 + ... + 924012816.

It is an arithmetic number, because the mean of its divisors is an integer number (116425531404).

Almost surely, 2^{1225240115541} is an apocalyptic number.

It is an amenable number.

1225240115541 is a deficient number, since it is larger than the sum of its proper divisors (637568386923).

1225240115541 is a wasteful number, since it uses less digits than its factorization.

1225240115541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848024340.

The product of its (nonzero) digits is 16000, while the sum is 33.

The spelling of 1225240115541 in words is "one trillion, two hundred twenty-five billion, two hundred forty million, one hundred fifteen thousand, five hundred forty-one".