1225115001 has 12 divisors (see below), whose sum is σ = 1930484400. Its totient is φ = 742493880.

The previous prime is 1225114991. The next prime is 1225115051. The reversal of 1225115001 is 1005115221.

It is not a de Polignac number, because 1225115001 - 2⁶ = 1225114937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225115051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6187351 + ... + 6187548.

It is an arithmetic number, because the mean of its divisors is an integer number (160873700).

Almost surely, 2^1225115001 is an apocalyptic number.

1225115001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1225115001 is a deficient number, since it is larger than the sum of its proper divisors (705369399).

1225115001 is a wasteful number, since it uses less digits than its factorization.

1225115001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12374916 (or 12374913 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1225115001 is about 35001.6428328729. The cubic root of 1225115001 is about 1070.0209624099.

The spelling of 1225115001 in words is "one billion, two hundred twenty-five million, one hundred fifteen thousand, one".