3525243146221 has 4 divisors (see below), whose sum is σ = 3710782259200. Its totient is φ = 3339704033244.

The previous prime is 3525243146203. The next prime is 3525243146291. The reversal of 3525243146221 is 1226413425253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3525243146221 - 2⁷ = 3525243146093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3525243146291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92769556461 + ... + 92769556498.

It is an arithmetic number, because the mean of its divisors is an integer number (927695564800).

Almost surely, 2^{3525243146221} is an apocalyptic number.

It is an amenable number.

3525243146221 is a deficient number, since it is larger than the sum of its proper divisors (185539112979).

3525243146221 is a wasteful number, since it uses less digits than its factorization.

3525243146221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185539112978.

The product of its digits is 345600, while the sum is 40.

The spelling of 3525243146221 in words is "three trillion, five hundred twenty-five billion, two hundred forty-three million, one hundred forty-six thousand, two hundred twenty-one".