612217122 has 16 divisors (see below), whose sum is σ = 1335746592. Its totient is φ = 185520320.

The previous prime is 612217117. The next prime is 612217127. The reversal of 612217122 is 221712216.

It is an interprime number because it is at equal distance from previous prime (612217117) and next prime (612217127).

It is a junction number, because it is equal to n+sod(n) for n = 612217092 and 612217101.

It is not an unprimeable number, because it can be changed into a prime (612217127) 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, 4637943 + ... + 4638074.

It is an arithmetic number, because the mean of its divisors is an integer number (83484162).

Almost surely, 2^612217122 is an apocalyptic number.

612217122 is an abundant number, since it is smaller than the sum of its proper divisors (723529470).

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

612217122 is a wasteful number, since it uses less digits than its factorization.

612217122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276033.

The product of its digits is 672, while the sum is 24.

The square root of 612217122 is about 24743.0216828907. The cubic root of 612217122 is about 849.1188663775.

Adding to 612217122 its reverse (221712216), we get a palindrome (833929338).

The spelling of 612217122 in words is "six hundred twelve million, two hundred seventeen thousand, one hundred twenty-two".