21022102003 has 32 divisors (see below), whose sum is σ = 25398056960. Its totient is φ = 17025240960.

The previous prime is 21022101983. The next prime is 21022102009. The reversal of 21022102003 is 30020122012.

It is not a de Polignac number, because 21022102003 - 2³³ = 12432167411 is a prime.

It is a super-2 number, since 2×21022102003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022102009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1239700 + ... + 1256542.

It is an arithmetic number, because the mean of its divisors is an integer number (793689280).

Almost surely, 2^21022102003 is an apocalyptic number.

21022102003 is a deficient number, since it is larger than the sum of its proper divisors (4375954957).

21022102003 is a wasteful number, since it uses less digits than its factorization.

21022102003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17027.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21022102003 its reverse (30020122012), we get a palindrome (51042224015).

The spelling of 21022102003 in words is "twenty-one billion, twenty-two million, one hundred two thousand, three".