21102220032130 has 32 divisors (see below), whose sum is σ = 39210177097728. Its totient is φ = 8168415710400.

The previous prime is 21102220032119. The next prime is 21102220032137. The reversal of 21102220032130 is 3123002220112.

It is a junction number, because it is equal to n+sod(n) for n = 21102220032098 and 21102220032107.

It is not an unprimeable number, because it can be changed into a prime (21102220032137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13305700 + ... + 14806960.

It is an arithmetic number, because the mean of its divisors is an integer number (1225318034304).

Almost surely, 2^{21102220032130} is an apocalyptic number.

21102220032130 is a deficient number, since it is larger than the sum of its proper divisors (18107957065598).

21102220032130 is a wasteful number, since it uses less digits than its factorization.

21102220032130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546642.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21102220032130 its reverse (3123002220112), we get a palindrome (24225222252242).

The spelling of 21102220032130 in words is "twenty-one trillion, one hundred two billion, two hundred twenty million, thirty-two thousand, one hundred thirty".