21022112210130 has 192 divisors, whose sum is σ = 59427801564768. Its totient is φ = 5136140206080.

The previous prime is 21022112210119. The next prime is 21022112210137. The reversal of 21022112210130 is 3101221122012.

21022112210130 is a `hidden beast` number, since 2 + 102 + 211 + 221 + 0 + 130 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 63780997401 + 20958331212729 = 252549^2 + 4578027^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21022112210137) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7891954 + ... + 10214066.

Almost surely, 2^{21022112210130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21022112210130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29713900782384).

21022112210130 is an abundant number, since it is smaller than the sum of its proper divisors (38405689354638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022112210130 is a wasteful number, since it uses less digits than its factorization.

21022112210130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322301 (or 2322298 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21022112210130 its reverse (3101221122012), we get a palindrome (24123333332142).

The spelling of 21022112210130 in words is "twenty-one trillion, twenty-two billion, one hundred twelve million, two hundred ten thousand, one hundred thirty".