1225432345221 has 24 divisors (see below), whose sum is σ = 2023008234624. Its totient is φ = 700222027680.

The previous prime is 1225432345211. The next prime is 1225432345231.

1225432345221 is a `hidden beast` number, since 1 + 22 + 54 + 32 + 34 + 522 + 1 = 666.

1225432345221 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (1225432345211) and next prime (1225432345231).

It is not a de Polignac number, because 1225432345221 - 2⁶ = 1225432345157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225432345211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1507051 + ... + 2173031.

It is an arithmetic number, because the mean of its divisors is an integer number (84292009776).

Almost surely, 2^{1225432345221} is an apocalyptic number.

It is an amenable number.

1225432345221 is a deficient number, since it is larger than the sum of its proper divisors (797575889403).

1225432345221 is a wasteful number, since it uses less digits than its factorization.

1225432345221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695201 (or 695198 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The spelling of 1225432345221 in words is "one trillion, two hundred twenty-five billion, four hundred thirty-two million, three hundred forty-five thousand, two hundred twenty-one".