2021325042221 has 8 divisors (see below), whose sum is σ = 2026675862400. Its totient is φ = 2015980826400.

The previous prime is 2021325042211. The next prime is 2021325042229. The reversal of 2021325042221 is 1222405231202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021325042221 is a prime.

It is a super-2 number, since 2×2021325042221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021325042229) 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, 1037861 + ... + 2262698.

It is an arithmetic number, because the mean of its divisors is an integer number (253334482800).

Almost surely, 2^{2021325042221} is an apocalyptic number.

It is an amenable number.

2021325042221 is a deficient number, since it is larger than the sum of its proper divisors (5350820179).

2021325042221 is a wasteful number, since it uses less digits than its factorization.

2021325042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302179.

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 2021325042221 in words is "two trillion, twenty-one billion, three hundred twenty-five million, forty-two thousand, two hundred twenty-one".