101211222 has 16 divisors (see below), whose sum is σ = 231340032. Its totient is φ = 28917480.

The previous prime is 101211221. The next prime is 101211241. The reversal of 101211222 is 222112101.

It is a super-2 number, since 2×101211222² = 20487422917466568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101211198 and 101211207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211221) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1204854 + ... + 1204937.

It is an arithmetic number, because the mean of its divisors is an integer number (14458752).

Almost surely, 2^101211222 is an apocalyptic number.

101211222 is an abundant number, since it is smaller than the sum of its proper divisors (130128810).

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

101211222 is a wasteful number, since it uses less digits than its factorization.

101211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409803.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 101211222 is about 10060.3788199053. The cubic root of 101211222 is about 466.0253659435.

Adding to 101211222 its reverse (222112101), we get a palindrome (323323323).

The spelling of 101211222 in words is "one hundred one million, two hundred eleven thousand, two hundred twenty-two".