22103001 has 6 divisors (see below), whose sum is σ = 31926570. Its totient is φ = 14735328.

The previous prime is 22102987. The next prime is 22103021. The reversal of 22103001 is 10030122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22099401 + 3600 = 4701^2 + 60^2 .

It is not a de Polignac number, because 22103001 - 2⁶ = 22102937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2455889 = 22103001 / (2 + 2 + 1 + 0 + 3 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (22103021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1227936 + ... + 1227953.

It is an arithmetic number, because the mean of its divisors is an integer number (5321095).

Almost surely, 2^22103001 is an apocalyptic number.

It is an amenable number.

22103001 is a deficient number, since it is larger than the sum of its proper divisors (9823569).

22103001 is a wasteful number, since it uses less digits than its factorization.

22103001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455895 (or 2455892 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 22103001 is about 4701.3828816636. The cubic root of 22103001 is about 280.6405445893.

Adding to 22103001 its reverse (10030122), we get a palindrome (32133123).

The spelling of 22103001 in words is "twenty-two million, one hundred three thousand, one".