1225503535121 has 8 divisors (see below), whose sum is σ = 1290013881600. Its totient is φ = 1160994204720.

The previous prime is 1225503535021. The next prime is 1225503535127. The reversal of 1225503535121 is 1215353055221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225503535121 - 2¹⁰ = 1225503534097 is a prime.

It is a super-3 number, since 3×1225503535121³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225503535127) 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, 4610051 + ... + 4868631.

It is an arithmetic number, because the mean of its divisors is an integer number (161251735200).

Almost surely, 2^{1225503535121} is an apocalyptic number.

It is an amenable number.

1225503535121 is a deficient number, since it is larger than the sum of its proper divisors (64510346479).

1225503535121 is a wasteful number, since it uses less digits than its factorization.

1225503535121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508039.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 1225503535121 in words is "one trillion, two hundred twenty-five billion, five hundred three million, five hundred thirty-five thousand, one hundred twenty-one".