101440022 has 4 divisors (see below), whose sum is σ = 152160036. Its totient is φ = 50720010.

The previous prime is 101440021. The next prime is 101440049. The reversal of 101440022 is 220044101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220044101 = 14653 ⋅15017.

It is a junction number, because it is equal to n+sod(n) for n = 101439979 and 101440006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101440021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25360004 + ... + 25360007.

It is an arithmetic number, because the mean of its divisors is an integer number (38040009).

Almost surely, 2^101440022 is an apocalyptic number.

101440022 is a deficient number, since it is larger than the sum of its proper divisors (50720014).

101440022 is an equidigital number, since it uses as much as digits as its factorization.

101440022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50720013.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 101440022 is about 10071.7437417758. The cubic root of 101440022 is about 466.3762702372.

Adding to 101440022 its reverse (220044101), we get a palindrome (321484123).

The spelling of 101440022 in words is "one hundred one million, four hundred forty thousand, twenty-two".