20101422 has 32 divisors (see below), whose sum is σ = 44169984. Its totient is φ = 6048000.

The previous prime is 20101421. The next prime is 20101427. The reversal of 20101422 is 22410102.

It is a junction number, because it is equal to n+sod(n) for n = 20101398 and 20101407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101421) 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 in 15 ways as a sum of consecutive naturals, for example, 8958 + ... + 10974.

It is an arithmetic number, because the mean of its divisors is an integer number (1380312).

Almost surely, 2^20101422 is an apocalyptic number.

20101422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20101422 is an abundant number, since it is smaller than the sum of its proper divisors (24068562).

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

20101422 is a wasteful number, since it uses less digits than its factorization.

20101422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20101422 is about 4483.4609399436. The cubic root of 20101422 is about 271.8998243418.

Adding to 20101422 its reverse (22410102), we get a palindrome (42511524).

The spelling of 20101422 in words is "twenty million, one hundred one thousand, four hundred twenty-two".