21001134022 has 32 divisors (see below), whose sum is σ = 34772988960. Its totient is φ = 9432910080.

The previous prime is 21001134001. The next prime is 21001134041. The reversal of 21001134022 is 22043110012.

It is a junction number, because it is equal to n+sod(n) for n = 21001133987 and 21001134005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5709648 + ... + 5713324.

It is an arithmetic number, because the mean of its divisors is an integer number (1086655905).

Almost surely, 2^21001134022 is an apocalyptic number.

21001134022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21001134022 is a deficient number, since it is larger than the sum of its proper divisors (13771854938).

21001134022 is a wasteful number, since it uses less digits than its factorization.

21001134022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21001134022 its reverse (22043110012), we get a palindrome (43044244034).

The spelling of 21001134022 in words is "twenty-one billion, one million, one hundred thirty-four thousand, twenty-two".