612021012 has 24 divisors (see below), whose sum is σ = 1512052416. Its totient is φ = 192006528.

The previous prime is 612020993. The next prime is 612021013. The reversal of 612021012 is 210120216.

It is a junction number, because it is equal to n+sod(n) for n = 612020982 and 612021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612021013) 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, 1499848 + ... + 1500255.

It is an arithmetic number, because the mean of its divisors is an integer number (63002184).

Almost surely, 2^612021012 is an apocalyptic number.

It is an amenable number.

612021012 is an abundant number, since it is smaller than the sum of its proper divisors (900031404).

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

612021012 is a wasteful number, since it uses less digits than its factorization.

612021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000127 (or 3000125 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 612021012 is about 24739.0584299403. The cubic root of 612021012 is about 849.0281913111.

Adding to 612021012 its reverse (210120216), we get a palindrome (822141228).

The spelling of 612021012 in words is "six hundred twelve million, twenty-one thousand, twelve".