101801422 has 16 divisors (see below), whose sum is σ = 155358720. Its totient is φ = 50023008.

The previous prime is 101801387. The next prime is 101801429. The reversal of 101801422 is 224108101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 101801422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101801429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25848 + ... + 29524.

It is an arithmetic number, because the mean of its divisors is an integer number (9709920).

Almost surely, 2^101801422 is an apocalyptic number.

101801422 is a deficient number, since it is larger than the sum of its proper divisors (53557298).

101801422 is a wasteful number, since it uses less digits than its factorization.

101801422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 101801422 is about 10089.6690728685. The cubic root of 101801422 is about 466.9294661512.

Adding to 101801422 its reverse (224108101), we get a palindrome (325909523).

The spelling of 101801422 in words is "one hundred one million, eight hundred one thousand, four hundred twenty-two".