102220612 has 12 divisors (see below), whose sum is σ = 192646636. Its totient is φ = 47178720.

The previous prime is 102220607. The next prime is 102220619. The reversal of 102220612 is 216022201.

It can be written as a sum of positive squares in 2 ways, for example, as 19483396 + 82737216 = 4414^2 + 9096^2 .

It is not an unprimeable number, because it can be changed into a prime (102220619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982839 + ... + 982942.

Almost surely, 2^102220612 is an apocalyptic number.

It is an amenable number.

102220612 is a deficient number, since it is larger than the sum of its proper divisors (90426024).

102220612 is a wasteful number, since it uses less digits than its factorization.

102220612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965798 (or 1965796 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 102220612 is about 10110.4209605733. The cubic root of 102220612 is about 467.5694837956.

Adding to 102220612 its reverse (216022201), we get a palindrome (318242813).

The spelling of 102220612 in words is "one hundred two million, two hundred twenty thousand, six hundred twelve".