101231222 has 8 divisors (see below), whose sum is σ = 152278056. Its totient is φ = 50471872.

The previous prime is 101231191. The next prime is 101231227. The reversal of 101231222 is 222132101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×101231222² = 20495520615226568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101231197 and 101231206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70988 + ... + 72399.

It is an arithmetic number, because the mean of its divisors is an integer number (19034757).

Almost surely, 2^101231222 is an apocalyptic number.

101231222 is a deficient number, since it is larger than the sum of its proper divisors (51046834).

101231222 is a wasteful number, since it uses less digits than its factorization.

101231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143742.

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

The square root of 101231222 is about 10061.3727691603. The cubic root of 101231222 is about 466.0560604761.

Adding to 101231222 its reverse (222132101), we get a palindrome (323363323).

The spelling of 101231222 in words is "one hundred one million, two hundred thirty-one thousand, two hundred twenty-two".