7120022021 has 8 divisors (see below), whose sum is σ = 8137837440. Its totient is φ = 6102373968.

The previous prime is 7120021969. The next prime is 7120022047. The reversal of 7120022021 is 1202200217.

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

It is a cyclic number.

It is not a de Polignac number, because 7120022021 - 2¹⁸ = 7119759877 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 (7120022051) 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, 68855 + ... + 137771.

It is an arithmetic number, because the mean of its divisors is an integer number (1017229680).

Almost surely, 2^7120022021 is an apocalyptic number.

It is an amenable number.

7120022021 is a deficient number, since it is larger than the sum of its proper divisors (1017815419).

7120022021 is a wasteful number, since it uses less digits than its factorization.

7120022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83683.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 7120022021 is about 84380.2229257544. Note that the first 3 decimals coincide. The cubic root of 7120022021 is about 1923.8023265470.

Adding to 7120022021 its reverse (1202200217), we get a palindrome (8322222238).

The spelling of 7120022021 in words is "seven billion, one hundred twenty million, twenty-two thousand, twenty-one".