102620212 has 24 divisors (see below), whose sum is σ = 190317960. Its totient is φ = 48330240.

The previous prime is 102620209. The next prime is 102620251. The reversal of 102620212 is 212026201.

It can be written as a sum of positive squares in 4 ways, for example, as 9960336 + 92659876 = 3156^2 + 9626^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6033 + ... + 15544.

It is an arithmetic number, because the mean of its divisors is an integer number (7929915).

Almost surely, 2^102620212 is an apocalyptic number.

It is an amenable number.

102620212 is a deficient number, since it is larger than the sum of its proper divisors (87697748).

102620212 is a wasteful number, since it uses less digits than its factorization.

102620212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21651 (or 21649 counting only the distinct ones).

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

The square root of 102620212 is about 10130.1634735082. The cubic root of 102620212 is about 468.1779645575.

Adding to 102620212 its reverse (212026201), we get a palindrome (314646413).

The spelling of 102620212 in words is "one hundred two million, six hundred twenty thousand, two hundred twelve".