21102222223130 has 32 divisors (see below), whose sum is σ = 38108520102528. Its totient is φ = 8413230830400.

The previous prime is 21102222223111. The next prime is 21102222223133. The reversal of 21102222223130 is 3132222220112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21102222223096 and 21102222223105.

It is not an unprimeable number, because it can be changed into a prime (21102222223133) 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, 12130364 + ... + 13760456.

It is an arithmetic number, because the mean of its divisors is an integer number (1190891253204).

Almost surely, 2^{21102222223130} is an apocalyptic number.

21102222223130 is a deficient number, since it is larger than the sum of its proper divisors (17006297879398).

21102222223130 is a wasteful number, since it uses less digits than its factorization.

21102222223130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634342.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21102222223130 its reverse (3132222220112), we get a palindrome (24234444443242).

The spelling of 21102222223130 in words is "twenty-one trillion, one hundred two billion, two hundred twenty-two million, two hundred twenty-three thousand, one hundred thirty".