1225451131005 has 16 divisors (see below), whose sum is σ = 1960773958080. Its totient is φ = 653556553728.

The previous prime is 1225451130991. The next prime is 1225451131129. The reversal of 1225451131005 is 5001311545221.

It is not a de Polignac number, because 1225451131005 - 2⁴ = 1225451130989 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 493195 + ... + 1641384.

It is an arithmetic number, because the mean of its divisors is an integer number (122548372380).

Almost surely, 2^{1225451131005} is an apocalyptic number.

1225451131005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225451131005 is a deficient number, since it is larger than the sum of its proper divisors (735322827075).

1225451131005 is a wasteful number, since it uses less digits than its factorization.

1225451131005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172860.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 1225451131005 its reverse (5001311545221), we get a palindrome (6226762676226).

The spelling of 1225451131005 in words is "one trillion, two hundred twenty-five billion, four hundred fifty-one million, one hundred thirty-one thousand, five".