612111012 has 12 divisors (see below), whose sum is σ = 1428259056. Its totient is φ = 204037000.

The previous prime is 612111001. The next prime is 612111023. The reversal of 612111012 is 210111216.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (612111001) and next prime (612111023).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 612110982 and 612111000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25504614 + ... + 25504637.

It is an arithmetic number, because the mean of its divisors is an integer number (119021588).

Almost surely, 2^612111012 is an apocalyptic number.

It is an amenable number.

612111012 is an abundant number, since it is smaller than the sum of its proper divisors (816148044).

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

612111012 is a wasteful number, since it uses less digits than its factorization.

612111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51009258 (or 51009256 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 612111012 is about 24740.8773490351. The cubic root of 612111012 is about 849.0698068714.

Adding to 612111012 its reverse (210111216), we get a palindrome (822222228).

The spelling of 612111012 in words is "six hundred twelve million, one hundred eleven thousand, twelve".