101222412 has 24 divisors (see below), whose sum is σ = 244330800. Its totient is φ = 32577216.

The previous prime is 101222377. The next prime is 101222413. The reversal of 101222412 is 214222101.

It is a junction number, because it is equal to n+sod(n) for n = 101222391 and 101222400.

It is not an unprimeable number, because it can be changed into a prime (101222413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145087 + ... + 145782.

It is an arithmetic number, because the mean of its divisors is an integer number (10180450).

Almost surely, 2^101222412 is an apocalyptic number.

101222412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101222412 is an abundant number, since it is smaller than the sum of its proper divisors (143108388).

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

101222412 is a wasteful number, since it uses less digits than its factorization.

101222412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290905 (or 290903 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 101222412 is about 10060.9349466141. The cubic root of 101222412 is about 466.0425400327.

Adding to 101222412 its reverse (214222101), we get a palindrome (315444513).

The spelling of 101222412 in words is "one hundred one million, two hundred twenty-two thousand, four hundred twelve".