7102021 has 4 divisors (see below), whose sum is σ = 7192000. Its totient is φ = 7012044.

The previous prime is 7102001. The next prime is 7102031. The reversal of 7102021 is 1202017.

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 7102021 - 2⁵ = 7101989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7101992 and 7102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7102001) 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, 44871 + ... + 45028.

It is an arithmetic number, because the mean of its divisors is an integer number (1798000).

Almost surely, 2^7102021 is an apocalyptic number.

It is an amenable number.

7102021 is a deficient number, since it is larger than the sum of its proper divisors (89979).

7102021 is an equidigital number, since it uses as much as digits as its factorization.

7102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89978.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 7102021 is about 2664.9617258040. The cubic root of 7102021 is about 192.2179689635.

Adding to 7102021 its reverse (1202017), we get a palindrome (8304038).

The spelling of 7102021 in words is "seven million, one hundred two thousand, twenty-one".