1225124401040 has 40 divisors (see below), whose sum is σ = 2848513808448. Its totient is φ = 490032629120.

The previous prime is 1225124401037. The next prime is 1225124401043. The reversal of 1225124401040 is 401044215221.

It is an interprime number because it is at equal distance from previous prime (1225124401037) and next prime (1225124401043).

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

It is not an unprimeable number, because it can be changed into a prime (1225124401043) 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, 2173325 + ... + 2678355.

Almost surely, 2^{1225124401040} is an apocalyptic number.

1225124401040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225124401040 is an abundant number, since it is smaller than the sum of its proper divisors (1623389407408).

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

1225124401040 is a wasteful number, since it uses less digits than its factorization.

1225124401040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535367 (or 535361 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 1225124401040 its reverse (401044215221), we get a palindrome (1626168616261).

The spelling of 1225124401040 in words is "one trillion, two hundred twenty-five billion, one hundred twenty-four million, four hundred one thousand, forty".