3250720419221 has 16 divisors (see below), whose sum is σ = 3563396705088. Its totient is φ = 2940906259200.

The previous prime is 3250720419197. The next prime is 3250720419263. The reversal of 3250720419221 is 1229140270523.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3250720419221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3250720418221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25683725 + ... + 25809981.

It is an arithmetic number, because the mean of its divisors is an integer number (222712294068).

Almost surely, 2^{3250720419221} is an apocalyptic number.

It is an amenable number.

3250720419221 is a deficient number, since it is larger than the sum of its proper divisors (312676285867).

3250720419221 is a wasteful number, since it uses less digits than its factorization.

3250720419221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137572.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 3250720419221 its reverse (1229140270523), we get a palindrome (4479860689744).

The spelling of 3250720419221 in words is "three trillion, two hundred fifty billion, seven hundred twenty million, four hundred nineteen thousand, two hundred twenty-one".