101212312 has 16 divisors (see below), whose sum is σ = 191160360. Its totient is φ = 50236224.

The previous prime is 101212283. The next prime is 101212327. The reversal of 101212312 is 213212101.

It is a junction number, because it is equal to n+sod(n) for n = 101212292 and 101212301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45078 + ... + 47269.

Almost surely, 2^101212312 is an apocalyptic number.

It is an amenable number.

101212312 is a deficient number, since it is larger than the sum of its proper divisors (89948048).

101212312 is a wasteful number, since it uses less digits than its factorization.

101212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92490 (or 92486 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 101212312 is about 10060.4329926698. The cubic root of 101212312 is about 466.0270388997.

Adding to 101212312 its reverse (213212101), we get a palindrome (314424413).

The spelling of 101212312 in words is "one hundred one million, two hundred twelve thousand, three hundred twelve".