101231212 has 6 divisors (see below), whose sum is σ = 177154628. Its totient is φ = 50615604.

The previous prime is 101231191. The next prime is 101231227. The reversal of 101231212 is 212132101.

It is a junction number, because it is equal to n+sod(n) for n = 101231192 and 101231201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12653898 + ... + 12653905.

Almost surely, 2^101231212 is an apocalyptic number.

It is an amenable number.

101231212 is a deficient number, since it is larger than the sum of its proper divisors (75923416).

101231212 is a wasteful number, since it uses less digits than its factorization.

101231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25307807 (or 25307805 counting only the distinct ones).

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

The square root of 101231212 is about 10061.3722722102. The cubic root of 101231212 is about 466.0560451298.

Adding to 101231212 its reverse (212132101), we get a palindrome (313363313).

The spelling of 101231212 in words is "one hundred one million, two hundred thirty-one thousand, two hundred twelve".