7020102421 has 4 divisors (see below), whose sum is σ = 7021923552. Its totient is φ = 7018281292.

The previous prime is 7020102391. The next prime is 7020102431. The reversal of 7020102421 is 1242010207.

It is a happy number.

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 7020102421 - 2⁷ = 7020102293 is a prime.

It is a super-2 number, since 2×7020102421² = 98563676002660122482, which 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 (7020102431) 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, 904771 + ... + 912496.

It is an arithmetic number, because the mean of its divisors is an integer number (1755480888).

Almost surely, 2^7020102421 is an apocalyptic number.

It is an amenable number.

7020102421 is a deficient number, since it is larger than the sum of its proper divisors (1821131).

7020102421 is a wasteful number, since it uses less digits than its factorization.

7020102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821130.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 7020102421 is about 83786.0514703969. The cubic root of 7020102421 is about 1914.7606016137.

Adding to 7020102421 its reverse (1242010207), we get a palindrome (8262112628).

The spelling of 7020102421 in words is "seven billion, twenty million, one hundred two thousand, four hundred twenty-one".