21130222030 has 32 divisors (see below), whose sum is σ = 38201536800. Its totient is φ = 8414997120.

The previous prime is 21130222021. The next prime is 21130222039. The reversal of 21130222030 is 3022203112.

It is an interprime number because it is at equal distance from previous prime (21130222021) and next prime (21130222039).

It is a junction number, because it is equal to n+sod(n) for n = 21130221995 and 21130222013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130222039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5152921 + ... + 5157019.

It is an arithmetic number, because the mean of its divisors is an integer number (1193798025).

Almost surely, 2^21130222030 is an apocalyptic number.

21130222030 is a deficient number, since it is larger than the sum of its proper divisors (17071314770).

21130222030 is a wasteful number, since it uses less digits than its factorization.

21130222030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6244.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21130222030 its reverse (3022203112), we get a palindrome (24152425142).

It can be divided in two parts, 211302 and 22030, that added together give a palindrome (233332).

The spelling of 21130222030 in words is "twenty-one billion, one hundred thirty million, two hundred twenty-two thousand, thirty".