12212120070 has 24 divisors (see below), whose sum is σ = 31751512416. Its totient is φ = 3256565328.

The previous prime is 12212120069. The next prime is 12212120071. The reversal of 12212120070 is 7002121221.

It is a happy number.

12212120070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12212120069) and next prime (12212120071).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212120071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67845022 + ... + 67845201.

It is an arithmetic number, because the mean of its divisors is an integer number (1322979684).

Almost surely, 2^12212120070 is an apocalyptic number.

12212120070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212120070 is an abundant number, since it is smaller than the sum of its proper divisors (19539392346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212120070 is a wasteful number, since it uses less digits than its factorization.

12212120070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135690236 (or 135690233 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

Adding to 12212120070 its reverse (7002121221), we get a palindrome (19214241291).

The spelling of 12212120070 in words is "twelve billion, two hundred twelve million, one hundred twenty thousand, seventy".