71002202002021 has 8 divisors (see below), whose sum is σ = 72662286270464. Its totient is φ = 69342520927680.

The previous prime is 71002202002007. The next prime is 71002202002097. The reversal of 71002202002021 is 12020020220017.

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

It is not a de Polignac number, because 71002202002021 - 2¹⁵ = 71002201969253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71002202002021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71002202002621) 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, 100442196 + ... + 101146621.

It is an arithmetic number, because the mean of its divisors is an integer number (9082785783808).

Almost surely, 2^{71002202002021} is an apocalyptic number.

It is an amenable number.

71002202002021 is a deficient number, since it is larger than the sum of its proper divisors (1660084268443).

71002202002021 is a wasteful number, since it uses less digits than its factorization.

71002202002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201597051.

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

Adding to 71002202002021 its reverse (12020020220017), we get a palindrome (83022222222038).

The spelling of 71002202002021 in words is "seventy-one trillion, two billion, two hundred two million, two thousand, twenty-one".