70212021211 has 4 divisors (see below), whose sum is σ = 70213875232. Its totient is φ = 70210167192.

The previous prime is 70212021059. The next prime is 70212021233. The reversal of 70212021211 is 11212021207.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70212021211 - 2²⁹ = 69675150299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70212027211) 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, 868995 + ... + 946348.

It is an arithmetic number, because the mean of its divisors is an integer number (17553468808).

Almost surely, 2^70212021211 is an apocalyptic number.

70212021211 is a deficient number, since it is larger than the sum of its proper divisors (1854021).

70212021211 is a wasteful number, since it uses less digits than its factorization.

70212021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854020.

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

Adding to 70212021211 its reverse (11212021207), we get a palindrome (81424042418).

The spelling of 70212021211 in words is "seventy billion, two hundred twelve million, twenty-one thousand, two hundred eleven".