102101212 has 24 divisors (see below), whose sum is σ = 189002240. Its totient is φ = 48126960.

The previous prime is 102101191. The next prime is 102101213. The reversal of 102101212 is 212101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101213) 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, 12853 + ... + 19219.

Almost surely, 2^102101212 is an apocalyptic number.

It is an amenable number.

102101212 is a deficient number, since it is larger than the sum of its proper divisors (86901028).

102101212 is a wasteful number, since it uses less digits than its factorization.

102101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6601 (or 6599 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 102101212 is about 10104.5144366268. The cubic root of 102101212 is about 467.3873628379.

Adding to 102101212 its reverse (212101201), we get a palindrome (314202413).

The spelling of 102101212 in words is "one hundred two million, one hundred one thousand, two hundred twelve".