70012012021 has 8 divisors (see below), whose sum is σ = 80222644224. Its totient is φ = 59853608880.

The previous prime is 70012012013. The next prime is 70012012039. The reversal of 70012012021 is 12021021007.

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 70012012021 - 2³ = 70012012013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70012011986 and 70012012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70012012051) 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, 13054390 + ... + 13059751.

It is an arithmetic number, because the mean of its divisors is an integer number (10027830528).

Almost surely, 2^70012012021 is an apocalyptic number.

It is an amenable number.

70012012021 is a deficient number, since it is larger than the sum of its proper divisors (10210632203).

70012012021 is a wasteful number, since it uses less digits than its factorization.

70012012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26114531.

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 70012012021 its reverse (12021021007), we get a palindrome (82033033028).

The spelling of 70012012021 in words is "seventy billion, twelve million, twelve thousand, twenty-one".