101143212 has 12 divisors (see below), whose sum is σ = 236000856. Its totient is φ = 33714400.

The previous prime is 101143199. The next prime is 101143223. The reversal of 101143212 is 212341101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 101143191 and 101143200.

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, 4214289 + ... + 4214312.

It is an arithmetic number, because the mean of its divisors is an integer number (19666738).

Almost surely, 2^101143212 is an apocalyptic number.

101143212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101143212 is an abundant number, since it is smaller than the sum of its proper divisors (134857644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101143212 is a wasteful number, since it uses less digits than its factorization.

101143212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8428608 (or 8428606 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 101143212 is about 10056.9981604851. The cubic root of 101143212 is about 465.9209589212.

Adding to 101143212 its reverse (212341101), we get a palindrome (313484313).

The spelling of 101143212 in words is "one hundred one million, one hundred forty-three thousand, two hundred twelve".