101223212 has 6 divisors (see below), whose sum is σ = 177140628. Its totient is φ = 50611604.

The previous prime is 101223197. The next prime is 101223233. The reversal of 101223212 is 212322101.

It is a happy number.

It is a super-2 number, since 2×101223212² = 20492277295193888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12652898 + ... + 12652905.

It is an arithmetic number, because the mean of its divisors is an integer number (29523438).

Almost surely, 2^101223212 is an apocalyptic number.

It is an amenable number.

101223212 is a deficient number, since it is larger than the sum of its proper divisors (75917416).

101223212 is a wasteful number, since it uses less digits than its factorization.

101223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25305807 (or 25305805 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 101223212 is about 10060.9747042719. The cubic root of 101223212 is about 466.0437678011.

Adding to 101223212 its reverse (212322101), we get a palindrome (313545313).

The spelling of 101223212 in words is "one hundred one million, two hundred twenty-three thousand, two hundred twelve".