21020213221132 has 6 divisors (see below), whose sum is σ = 36785373136988. Its totient is φ = 10510106610564.

The previous prime is 21020213221121. The next prime is 21020213221193. The reversal of 21020213221132 is 23112231202012.

It is a super-2 number, since 2×21020213221132² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627526652638 + ... + 2627526652645.

Almost surely, 2^{21020213221132} is an apocalyptic number.

It is an amenable number.

21020213221132 is a deficient number, since it is larger than the sum of its proper divisors (15765159915856).

21020213221132 is a wasteful number, since it uses less digits than its factorization.

21020213221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255053305287 (or 5255053305285 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21020213221132 its reverse (23112231202012), we get a palindrome (44132444423144).

The spelling of 21020213221132 in words is "twenty-one trillion, twenty billion, two hundred thirteen million, two hundred twenty-one thousand, one hundred thirty-two".