70001011022221 has 4 divisors (see below), whose sum is σ = 70001035015392. Its totient is φ = 70000987029052.

The previous prime is 70001011022203. The next prime is 70001011022287. The reversal of 70001011022221 is 12222011010007.

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 70001011022221 - 2⁷ = 70001011022093 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 (70001011022021) 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, 6897961 + ... + 13696126.

It is an arithmetic number, because the mean of its divisors is an integer number (17500258753848).

Almost surely, 2^{70001011022221} is an apocalyptic number.

It is an amenable number.

70001011022221 is a deficient number, since it is larger than the sum of its proper divisors (23993171).

70001011022221 is a wasteful number, since it uses less digits than its factorization.

70001011022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23993170.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 70001011022221 its reverse (12222011010007), we get a palindrome (82223022032228).

The spelling of 70001011022221 in words is "seventy trillion, one billion, eleven million, twenty-two thousand, two hundred twenty-one".