21022031322130 has 32 divisors (see below), whose sum is σ = 38383770740400. Its totient is φ = 8288052959232.

The previous prime is 21022031322077. The next prime is 21022031322137. The reversal of 21022031322130 is 3122313022012.

It can be written as a sum of positive squares in 8 ways, for example, as 7368200800249 + 13653830521881 = 2714443^2 + 3695109^2 .

It is a super-2 number, since 2×21022031322130² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21022031322137) 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, 8583045 + ... + 10756984.

Almost surely, 2^{21022031322130} is an apocalyptic number.

21022031322130 is a deficient number, since it is larger than the sum of its proper divisors (17361739418270).

21022031322130 is a wasteful number, since it uses less digits than its factorization.

21022031322130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19341598.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21022031322130 its reverse (3122313022012), we get a palindrome (24144344344142).

The spelling of 21022031322130 in words is "twenty-one trillion, twenty-two billion, thirty-one million, three hundred twenty-two thousand, one hundred thirty".