70112122011221 has 4 divisors (see below), whose sum is σ = 70112139778944. Its totient is φ = 70112104243500.

The previous prime is 70112122011163. The next prime is 70112122011241. The reversal of 70112122011221 is 12211022121107.

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 70112122011221 - 2³⁰ = 70111048269397 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 (70112122011241) 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, 10535 + ... + 11841636.

It is an arithmetic number, because the mean of its divisors is an integer number (17528034944736).

Almost surely, 2^{70112122011221} is an apocalyptic number.

It is an amenable number.

70112122011221 is a deficient number, since it is larger than the sum of its proper divisors (17767723).

70112122011221 is a wasteful number, since it uses less digits than its factorization.

70112122011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17767722.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 70112122011221 its reverse (12211022121107), we get a palindrome (82323144132328).

The spelling of 70112122011221 in words is "seventy trillion, one hundred twelve billion, one hundred twenty-two million, eleven thousand, two hundred twenty-one".